s = bc -5, for b whats the answer?
help me smart math people
Answer:
48 because i720 divided into 15 groups calculate to 48
3х - у = 13
у = 2х - 7
Answer:
y=3x-13
Step-by-step explanation:
where do u get the 2?
Answer:
x=6 y=5
Step-by-step explanation:
use substitution because they y variable is already in the correct form for substitution
What is the value of x in the equation below?
1.5 times open paren x plus 4 close paren minus 3 equals 4.5 times open paren x minus 2 close paren
Group of answer choices
x equals 3
x equals 4
x equals 9
x equals 5
solve this equation -3x-13=-103
Answer:
[tex] - 3x - 13 = - 103 \: \: \: \times ( - 1) \\ 3x + 13 = 103 \\ 3x = 103 - 13 \\ 3x = 90 \\ x = \frac{90}{3} \\ x = 30[/tex]
A rhombus is a quadrilateral that has exactly one pair of parallel sides.
True or false
Answer:
False
Step-by-step explanation:
Every rhombus has two diagonals connecting pairs of opposite vertices, and two pairs of parallel sides.
4) Allison practices her violin for at least 12 hours per week. She practices for three fourths of an hour each
session. If Allison has already practiced 3 hours this week, how many more sessions remain for her to meet
or exceed her weekly practice goal?
Answer:
12
Step-by-step explanation:
So, she practices 12 hrs per week, and already has practiced 3 hrs this week.
This means she has 9 hrs left to practice.
3/4 of an hour is one session, so to find out the number of sessions she needs, you have to do (9 hours)/(one session)
which is basically 9 / ( 3/4)
[tex]\frac{9}{3/4}=\frac{9}{1} / \frac{3}{4} = \frac{9}{1} * \frac{4}{3} = \frac{36}{3} = 12[/tex]
She needs 12 more sessions.
ALRIGHTY, HELP MEH PLZ! YOU'LL GET BRAINLIEST IF YOU'RE RIGHT!
Please post the question dear!
Answer:
how can I help u plz can u say
HELP ASAP WORTH 50 POINTS!! WILL GIVE BRAINLIEST!
Bell is 5 more than 4 times older than John. Together their ages add to 70. How old is John?
John is 13
John is 15
John is 56
John is 2
Answer:
I think John is 13 is the answer buti'm not 100%㋛︎
Answer:
John is 13
Step-by-step explanation:
If john is 13 then 4 times that is 52 and bell is 5 more so 57 and 57 plus 13 = 70
You bought a package of paper for $3 and some pencils for $2 each at the school store. You paid $15 for everything that you bought. How many pencils did you buy?
Answer:
6 pencils
Step-by-step explanation:
Total cost = paper * cost of a package + pencils * cost of a pencils
We bought 1 pack of paper at 3 dollars and p pencils at 2 dollars
15 = 1*3 + p*2
15 = 3+2p
Subtract 3 from each side
15-3 = 3+2p-3
12 = 2p
Divide by 2
12/2 = 2p/2
6 = p
4.
Solve the following equation for x. Represent
your answer in two forms, (1) with radicals and
(2) with rational exponents: x^4 = y^7
Answer:
7
Step-by-step explanation:
7 =2 hx x e
b + 2 = -18 find what the letter b means
Answer:
b = -20
Step-by-step explanation:
b + 2 = -18
b = -20
Answer:
b= -20
Step-by-step explanation:
the first step is to subtract 2 from both sides of the equation.
b + 2 = -18
-2 -2
-------------------
the -2 and +2 cancel
b = -20
hope this helps! :D
Sovle for x : -2×+5<7
Answer:
x>−1
Step-by-step explanation:
Bia tem 1230 reais, ganhou mais 500 reais, com quantos reais ela ficou?
Answer:
Bia ficará com 1730 reais.
Step-by-step explanation:
1230+700=1730
simplify the expression -5 3/4 + -1/4
Answer:
-5/2(-2.5)
Step-by-step explanation:
hope this helps
can you please explain it ?
what is the answer to 95x-45+-8x[67=
Answer:
Combine Like Terms:
=95x+−45+−536x
=(95x+−536x)+(−45)
=−441x+−45
Step-by-step explanation:
Evaluate f(0) given the following graph
Answer: 1
Step-by-step explanation:
the equation of the graph will be y = f(x).
f(0) means the the value of y when x = 0, which is 1
or you can view it as where does the graph cuts the y-axis (x=0).
if a= 2, b= -3 and c= 4 evaluate ab-bc
Answer:
ab - bc = 6
Step-by-step explanation:
COMPUTATION:
ab - bc = ?
(2 x -3) - (-3 x 4) = ?
(-6) - (-3 x 4) = ?
(-6) - (-12) = ?
-6 + 12 = 6
Hope this helps!
PLEASE SOMEOME HELP ME MY HW IS DUE TMR ITS 8TH GRADE ALGEBRA 1 LINEAR FUNCTIONS
I only did the top part please I beg you help me
Answer:
I put 4, 5, & 6 in order in the photos.
7-8-9 are all linear functions which are written in the y=ax+b format, the ones I put in bold are the equations and I listed the values just in case I'm not sure how your teacher makes you write them.
7.
-0.6=a(-3)+b
0.2=a(1)+b
1.4=a(7)+b
a=0.2,b=0
y=0.2x
8.
-10=a(-5)+b
-1=a(-2)+b
17=a(4)+b
b=5, a=3
y=3x+5
9.
8=a(-5)+b
2=a(-2)+b
-18=a(8)+b
b=-2, a=-2
y=-2x-2
10.
The domain and range is negative infinity to infinity.
11.
For a basic subscription, a cable television provider charges an activation fee of $60, plus $125 per month. What linear function represents the total cost of basic cable subscription for t months? What is the total cost for two years of service?
y=125x+60
$310 for 2 months
$3060 for 2 years
Step-by-step explanation: let x be the number of months
y=125x+60
y=125(2)+60
y=310 dollars for two months
y=125(24)+60
y=3060 dollars for two years
I hope it helps!
Solve the systems of equation by graphing
#a
Refer to attachment 1
#b
Refer to attachment 2
Graph 1.7 on a number line
Answer:
Step-by-step explanation:
1.7 lies between 1 and 2.
A class contributed $19.00 in quarters and dimes to a local homeless shelter. In
all there were 100 coins. How many were there of each kind.
Answer: 60 quarters and 40 dimes
Step-by-step explanation:
Step 1: Setup Coin Value and Coin Total Equation:
Coin Value Equation → 0.1d + 0.25q = $19.00 where d = dimes and q = quarters
Coin Total Equation → d + q = 100
Step 2: Rearrange Coin Total Equation in terms of dimes (d)
d = 100 - q ← Revised Coin Total Equation
Step 3: Plug in our Revised Coin Total Equation for d into our Coin Value Equation:
0.1(100 - q) + 0.25q = $19.00
0.1(100) - 0.1(q) + 0.25q = $19.00
10 - 0.1q + 0.25q = $19.00
10 + (0.25 - 0.1)q = $19.00
10 + 0.15q = $19.00
Step 4: Subtract 10 from each side of the equation to isolate q
10 - 10 + 0.15q = $19.00 - 10
0.15q = 9
Step 5: Divide each side of the equation by 0.15 to isolate q
0.15q/0.15 = 9/0.15
q = 60
Step 6: Using our value for q, Solve for d using our Coin Total Equation:
d + 60 = 100
Subtracting 60 from both sides, we get d + 60 - 60 = 100 - 60
d = 40
Summarizing our word problem, we see that 60 quarters and 40 dimes add up to $19.00
Select the correct answer.
Consider these functions:
f(x) = x + 1
g(x)= 2/x
Which polynomial is equivalent to (fºg)(x)?
Answer:
C. 2/x +1
Step-by-step explanation:
In the expression x is a real number, and a andare integers.
Use the properties of integer exponents to rewrite
BIU.
as an exponential expression with a single base and exponent
Answer:
a-n=1
Step-by-step explanation:
5/8 times by 1/12
What is the answer in its simplest form?
Answer: 5/96
Step-by-step explanation:
8n - 7 = -5(-3n - 7)
Solve Multi-Step equation.
Please explain how you i can understand too!
Answer:
n=-6
Step-by-step explanation:
8n-7=-5(-3n-7)
Multiply -5 to -3n and -7
8n-7= 15n+35
Bring 8n to the other side by subracting it from 15n
-7=7n+35
Subtract 35 from both sides
-42=7n
Divide both sides by 7
n=-6
can anyone help me with this problem with a full explanation?? thank you
Answer:
15, 16, 17
Step-by-step explanation:
let the consecutive numbers be n , n + 1 , n+ 2 , then
n + n + 2 = 32 ( sum of first and third )
2n + 2 = 32 ( subtract 2 from both sides )
2n = 30 ( divide both sides by 2 )
n = 15
n + 1 = 15 + 1 = 16
n + 2 = 15 + 2 = 17
The 3 numbers are 15, 16, 17
Step-by-step explanation:
let the 1st and 2nd consecutive number be
x , x + 1 , x + 2
their sum = 32
so, x + x + 2 = 32
→ 2x + 2 = 32
→ 2x = 32 - 2 = 30
→ x = 30/2 = 15
so,
1st and 3rd consecutive number is
x = 15
x + 2 = 15 + 2 = 17
as they are consecutive number so 2nd number is 16
and a/q sum of 1st and 3rd number is 32
15 + 17 = 32
hope this answer helps you dear...take care and may u have a great day ahead!
Write the equation of the line in fully simplified slope/intercept form
Answer:
y = m x + b standard form for straight line
m = (y2 - y1) / (x2 - x1)
When y2 = 12, x = -6
when y = 0, x = -2
m = (12 - 0) / (-6 - (-2)) = -3
so y = -3 x + b
Also, when x = 0, y = -6
Our equation is
y = -3 x - 6
As a check try x = -2
y = (-3 * -2) + (-6) = 0 as the graph shows
Use the distributive property to simplify the expression -8(5 + 9). Show your work.
Answer:
-112
Step-by-step explanation: