Answer:
28 years
Step-by-step explanation:
youngest brother's age = x
middle brother's age = x+2
oldest brother's age = x+4
3(x-2) = (x+2)+48
[simplify]
3x-6 = x+50
[add 6 to each side]
3x = x+56
[subtract x from each side]
2x = 56
[divide each side by 2]
x = 28
The cost of 7 scarves is $68.25. What is the unit price?
Answer:
The unit price of this item would be *( $9.75 )*
Step-by-step explanation:
Answer:
$9.75
Step-by-step explanation:
68.25/7=9.75
Ralph wants to build a rectangular deck with a predefined area of 66 feet squared. One side of the deck will be 5 feet longer than the other. To find the side lengths, he first writes the equation (x)(x+5)=66 and later simplifies (x-6)(x+11)=0 it to , where x is the length of the shorter side. Which of these are the side lengths, in feet, of the rectangular deck? Select all that apply
Answer:
The shorter side is 6 ft and the longer side is 11 ftStep-by-step explanation:
The options are not given, but we could solve and arrive at an answer
say the shorter side is x
and the longer side is x+5
we know that the area of a rectangle is given as
x*(x+5)=66
open the bracket
x^2+5x=66
x^2+5x-66=0
Find two factors of -66 whose sum equals the coefficient of the middle term, which is 5 .
the factors are 11 and -6
splitting the middle term using the two factors 11 and -6
x2 +11x - 6x - 66=0
x(x+11)-6(x+11)=0
(x-6)=0
x=6
(x+11)=0
x=-11
The shorter side is 6 ft and the longer side is 11 ft
5/m-9 = 8/m+5
Solve the following proportions, while using cross multiplication.
Is the equation y=-2x+7 parallel
Answer:
Yes it's parallel
Step-by-step explanation:
Lines with the same slope are parallel.
The slope is -2.
What is the value of y?
2 StartRoot 3 EndRoot units
4 units
4 StartRoot 3 EndRoot units
Answer:
B
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
i believe it's B on edge! hope this helps!!~ ( ´ ▽ ` )ﾉ
You can buy a skateboard from your friend for $60 and rent a helmet for $2 per hour. Your other option is to rent a skateboard and a helmet for $6 per hour. How many hours must you skateboard so that the costs would be the same? Write an equation.
Answer:
3 hours if you buy the board and 11 hours if you rent
Whats the answer
I have sent a photo im not sure if u can see it
Answer:
That would be (-5,5)
Step-by-step explanation:
Unless I saw the photo wrong, you start at the coordinates (-3,-1). You move left 2 units to get to (-5,-1). Then you move 6 units up. That will get you to (-5,5).
I hope this helps! All credit should go to tjclrk1; I had to edit
Find the equation of the linear function represented by the table below in slope-
intercept form.
y=Mx+B
Answer:
y = x + 4
Step-by-step explanation:
Let the equation of the linear function represented by the table is,
[tex]y-y_1=m(x-x_1)[/tex]
where m = slope of the line
And this line passes through the points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]
Slope of the given line = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
From the given table two points lying on the function are (-4, 0) and (1, 5).
Slope 'm' = [tex]\frac{5-0}{1+4}[/tex] = 1
Therefore, equation of the linear function passing through (1, 5) and slope 1 will be,
y - 5 = (x - 1)
y = x + 5 - 1
y = x + 4
Find the quotient of 2 ÷ 3 8 .
In his garden tim plants the seed 5 1/4 in. below the ground. After one month the tomato plant has grown a total of 11 1/2 in. How many inches is the plant above the ground?
Answer:
6 1/4
Step-by-step explanation:
Find the area. Simplify your answer.
Answer: 1.5x²
Step-by-step explanation:
Rule: To find the area of a triangle, multiply the base times one side, then divide the product by 2.
Step 1: Find the length of the left side using the pythagorean theorem.
a^2 + b^2 = c^2.
x^2 + 2x^2 = 3x^2
√3x² = 3x
Step 2: Multiply the base times the hypotenuse.
x * 3x = 3x²
Step 3: Divide by two
3x²/2 = 1.5x²
help asap
A Dog grooming service takes care of dogs by giving dogs (d) a bath, (b) (Some dogs don't require a bath) cutting its nails (n)( Assume a nail can only be cut partially and cutting their hair H (Measured as a weight in pounds )
6) Which set of numbers best describes the value of the variable? Choose the most specific value.d(# of dogs)
a)natural
b)whole
c)integer
d)rational
e)irrational
f)real
7)Which set of numbers best describes the value of the variable? Choose the most specific value.b (number of baths)
a)natural
b)whole
c)integer
d)rational
e)irrational
f)real
8) Which set of numbers best describes the value of the variable? Choose the most specific value.n (number of nails cut. Assume only part of a nail can be cut)
a)natural
b)whole
c)integer
d)rational
e)irrational
f)real
9) Which set of numbers best describes the value of the variable? Choose the most specific value.H. (wight of hair in pounds)
a)natural
b)whole
c)integer
d)rational
e)irrational
f)real
Answer: (6) a (7) b (8) d (9) d
Step-by-step explanation:
a) Natural Numbers: 1, 2, 3, ...
b) Whole Numbers: 0, 1, 2, 3, ... (add zero to the Natural numbers)
c) Integers: ..., -3, -2, -1, 0, 1, 2, 3, ... (add negatives to the Whole numbers)
d) Rationals: Add terminating and repeating decimals to Integers.
************
e) Irrationals: Non-repeating decimals that are non-terminating. This is its own category so cannot be a Rational number or above.
f) Real Numbers: ALL of the above (a - e) are Real numbers.
6) The variable (d) represents the number of dogs. You cannot have a fraction of dog (rational), a negative number of dogs (integer), or zero dogs (whole) so the variable will be a NATURAL number.
7) The variable (b) represents the number of baths. You cannot have a fraction of a bath (rational), a negative number of baths (integer), but you can have zero baths so the variable will be a WHOLE number.
(8) The variable (n) represents the number of nails. You can have a fraction of a nail so the variable will be a RATIONAL number.
(9) The variable (h) represents the number of pounds of hair. You can have a fraction of a pound so the variable will be a RATIONAL number.
I NEED HELP ASAP! I WILL GIVE YOU BRAINLIST!!!
Which is a diagonal through the interior of the cube?
A cube. The top face has points A, B, D, C. The bottom face has points E, F, H, G.
A. Side A D
B. Side B G
C. Side C E
D. Side D F
*I have been informed its not D*
Answer:
try a
Step-by-step explanation:
could be wrong dude sorry.
please answer these questions I have an f if I don't get help I will die
Answer:
rip just search em up and its kinda blurry sorry
Step-by-step explanation:
Select each set of points that are coplanar.
HELP FAST! I need help with this math problem. A, B, C or D?
Answer:
d
Step-by-step explanation:
15. (01.04 MC)
Simplify the following expression: (-1)(-7)(4) (1 point)
12
28
-12
-28
Answer:
28
Step-by-step explanation:
(-1)(-7)(4)
Let’s rephrase this
(-1) * (-7) * 4
Multiple in order
(-1) * (-7) = 7
A negative times a negative equals a positive.
7 * 4= 28
What are the quotient and remainder of (2x4 + 5x3 – 2x – 8) + (x+3)?
a. 2x3 - x2 + 3x - 11; 1
c. 2x3 - x2 + 3x - 11; 25
b. 2x4 -x + 3x2 - 11; 25
d. 2x3 - x2 + 3x + 11; 25
Answer:
option b ) 2x3 - x2 + 3x - 11; 25
Step-by-step explanation:
852 divided by 3 ?...........
Answer:
284
Step-by-step explanation:
Answer:
284
Step-by-step explanation:
PLS IT URGENTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT!!!!!!!!!!!!!!!!!!!
Answer:
Im sorry because I do not know that.
Step-by-step explanation:
The sequence -9,-15,-21,-27 is a
Arithmetic sequence or Geometric sequence
Answer:
Arithmetic sequence
Step-by-step explanation:
It's Arithmetic sequence, because it's basically the list of integers that can be added, or subtracted by a same number every time. So, according to the following sequence shown, it shows that it's subtracting by [tex]6[/tex] every time.
Fiona’s mom bought 36 apples for Fiona and her 9 friends to eat. They each ate the same number of apples. Each of them only ate whole apples. How many apples were left over from the 36 her mom bought?
A:0
B:3
C:4
D:6
Answer:0
Step-by-step explanation: because all of the friends will get 4 apples and 4x9 is 36
Please hurry!! I'm trying to get this done fast
Answer: the pre image is FGH
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
The triangle was translated 4 units down.
It can not be A, because it would have needed to be translated up 4 units.
It can't be C, because they are not both images, one is the starting image or the pre-image and the other is after the translation or the image.
D is incorrect because it con be determined.
Hope this helps :-)
Answer question 1-15 by 6pm
Answer:
Step-by-step explanation:
It is not really a question we can help you with you have to draw shapes for each 3 letters
Write a proportion for each situation. Then solve
c. 25 yards in 2 1/2 seconds 100 yards in y second
d. 480 heartbeats in 4 minutes z heartbeats in 1 minute
Answer:
c. x = 10d. z = 120Step-by-step explanation:
Given proportions
Equations as per ratio and solution for each
c. ..................................
25 ÷ 2 1/2 = 100 ÷ x25 ÷ 5/2 = 100 ÷ xx = 100×5/2÷25x = 10100 yards in 10 seconds
d. ..................................
480 ÷ 4 = z ÷ 1120 = zz = 120120 heartbeats in 1 minute
Answer:
c. y = 10 secs.d. z = 120 heartbeatsStep-by-step explanation:
c. ratio and proportion:
25 yards = 100 yards
2.5 sec. y sec.
cross multiply:
100 (2.5) = 25 (y)
simplify:
y = 250 / 25
y = 10 secs.
------------------------------------------
d. ratio and proportion:
480 heartbeats = z heartbeats
4 mins. 1 min.
cross multiply:
4 (z) = 480 (1)
simplify:
z = 480 / 4
z = 120 heartbeats
Two angles are suppiementary, One angle is three times the measure of the other. What are the measures of the angles? Enter only the number in the box. Do not enter words or symbols. Angle measures can be entered in either order Help ASAP
Answer:
135 degrees and 45 degrees
Step-by-step explanation:
Two angles are supplementary when their sum adds up to 180 degrees.
Four students decide to flip a coin a number of times and record their results. Dan flips his coin 5 times, Kelly flips her coin 25 times, Amando flips his coin 50 times, and Judah flips his coin 100 times. Whose results will most likely approach the theoretical probability?
Answer:
Judah
Step-by-step explanation:
Because the more times you do the same thing over and over again then average it the more accurate it becomes
Find cosα given that sinα = 5/13 and α is in quadrant II
Answer:
cos α = - [tex]\frac{12}{13}[/tex]
Step-by-step explanation:
Since α is in second quadrant then cosα < 0
Using the identity
sin²α + cos²α = 1 then
cosα = - [tex]\sqrt{1-sin^2\alpha }[/tex]
= - [tex]\sqrt{1-(\frac{5}{13})^2 }[/tex]
= - [tex]\sqrt{1-\frac{25}{169} }[/tex]
= - [tex]\sqrt{\frac{144}{169} }[/tex]
= - [tex]\frac{12}{13}[/tex]
what ratios are equivalent to 10:12 plz help i need this done by today.
Answer:
5:6 is the only ratio that is possibly equivalent
Step-by-step explanation:
divide 10 by 2 then 12 by 2 to get 5:6
Please Help!! I Have Less Than 20 Minutes!!
Answer:
i think c if not im really sorry
Step-by-step explanation: