Answer:
50.2in or 4.2ft
Step-by-step explanation:
This is a problem about proportions so I generally set up my problems like below. I just set some variable here to make it easier to refer back to the measurements for each. You don't have to do this, I am just showing it for clarity. I will convert everything to inches too. We need to find the real window height.
Mb = model building = 18in
Mw= model window = [tex]\frac{1}{9}[/tex]in
Rb = real building = 678ft = 8136in
Rw = real window = ?
[tex]\frac{Mw}{Mb}[/tex] = [tex]\frac{Rw}{Rb}[/tex]
[tex]\frac{1/9}{18}[/tex] = [tex]\frac{Rw}{8136}[/tex]
[tex]\frac{1}{9*18}[/tex] = [tex]\frac{Rw}{8136}[/tex]
[tex]\frac{1}{162}[/tex] = [tex]\frac{Rw}{8136}[/tex]
[tex]\frac{1*8136}{162}[/tex]= [tex]\frac{8136*Rw}{8136}[/tex]
[tex]\frac{8136}{162}[/tex] = Rw
[tex]\frac{452}{9}[/tex] = Rw
Rw ≈ 50.2in ≈ 4.2ft
A pink gold bracelet weighs 60 g. It is made from 76% gold, 18% copper and 6% aluminium.
a What is the mass of the gold in the bracelet?
b What is the mass of the copper in the bracelet?
Answer:
m(Au)=45.6 [gr] ; m(Cu)= 10.8 [gr].
Step-by-step explanation:
the masses of gold (Au), copper (Cu) and aluminium (Al) are:
0.76*60=45.6 (gr); 0.18*60=10.8 (gr.) and 0.06*60=3.6 (gr).
answer fast please and thank you
Answer:
yes
Step-by-step explanation:
which of the following pairs of triangles can be proven by ASA?
Answer:
B
Step-by-step explanation:
is y = 3x^2 + 2 a linear
Answer: no
Step-by-step explanation:
an example of a linear equation is x + 1. linear means a straight line. In a linear, the highest exponent on the x opponent is 1. in the equation 3x^2 + 2, the highest exponent on the x opponent is 2 which means this is a quadratic not a linear.
Someone plz help URGENTLY will mark brainliest plz no links or will be reported
Step-by-step explanation:
Given the function, f(x) = -3x + 4, you basically need to choose any input (x-value) and substitute those values into the function.
f(0) = -3x + 4, where the input is x = 0.f(0) = -3(0) + 4
f(0) = 0 + 4
f(0) = 4 [this is the value of your final column, in the f(x)].
2. f( 1 ) = -3( 1 ) + 4, where the input is x = 1.
f( 1 ) = -3( 1 ) + 4
f( 1 ) = -3 + 4
f( 1 ) = 1 [this is the value of your final column, in the f(x)].
3. f(2) = -3(2) + 4, where the input is x = 2.
f(2) = -6 + 4
f(2) = -2 [this is the value of your final column, in the f(x)].
All you need to do is plot the following points on your graph:
{(0, 4), (1, 1), (2, -2)}
troy is twice as old as michelle. the difference is their age is 16. How old is troy?
Answer:
Troy is either 16 or 32.
Step-by-step explanation:
Sorry for not giving the exact answer the question is worded badly..
Answer: 32
Step-by-step explanation:
16 + 16. if you break it down, you can get 8 x 4. so if you count 8, 16, 24, (32) is your answer.
ANSWER PLZZZZZZZZZZZZZ
Answer:
to?
Step-by-step explanation:
solve. 2x−4+2x=−6x−2
Answer:
x = 1/5
Step-by-step explanation:
2x − 4 + 2x = −6x −2
Combine the like terms (2x)
Result:
4 − 4 = − 6 − 2
Add 4 to both sides:
4 − 4 + 4 = − 6 − 2 + 4
Result:
4 = − 6 + 2
Add 6x to both sides.
4 + 6 = − 6 + 2 + 6
Result:
1 0 = 2
Divide both sides by 10:
1 0 / 1 0 = 2/ 1 0
Result:
x = 1/5
Therefore, x = 1/5 would be your answer.
-kiniwih246
Find the difference.
-8 - 20
Answer:
-8 -20 or - 8 - 20
correct me if I'm wrong
Answer: -28
Step-by-step explanation: the word "difference" in math means subtraction. so -8-20 is -28
what is the probability of flipping a head in 3 consecutive flips of a fair coin?
ere
1232
Patiy wrote 137 words in her
essay. Robin wrote 349 words.
How many more words did
Robin write than Patty?
what is the solution to the original equations 8(3x-7) = -6(x+7)+4 ? Show your work
3/5
Step-by-step explanation:
8 (3x-7)=-6 (x+7)+4
24x-56=-6x+(-42)+4
24x+6x=-42+4+56
30x=-38+56
30x=18
30x/30=18/30
x=3/5
Find the value of |-4| - 5 · 2(-1 + 3). SHOW YOUR WORK PLS
plz help me! 50 points
Graph attached
Shading should be done from 3 to 15/2 or 7.5
It should be open dot
Jake said an equivalent expression is -10 + 3/7g. What was the likely error made by Jake?
Answer:
you can do this on Math way . com
Step-by-step explanation:
Answer:
He thought swapping the - sign would make it equl.
Step-by-step explanation:
The price of an item yesterday was $85. Today, the price rose to $136. Find the percentage increase
60%
Step-by-step explanation:
(136 - 85)/85 × 100%
= 51/85 × 100%
= 51/17 × 20%
= 3 × 20%
= 60%
Solve for d.
3 + d ≤ 3 - d
Answer:
[tex]3 + d \leqslant 3 - d \\ d + d \leqslant 3 - 3 \\ 2d \leqslant 0 \\ d \leqslant 0 \\ thank \: you[/tex]
1) Cancel 3 on both sides
d≤−d
2) Subtract -d from both sides.
d+d≤0
3) Simplify d+d to 2d.
2d≤0
4) Divide both sides by 2.
d≤0
I NEED HELP If right will make brileintest
Using the graph of f(x) and g(x), where g(x) = f(k⋅x), determine the value of k.
Graph of two lines. f of x passes through 2, 0 and 3, 2, and g of x passes through two thirds, 0 and 1, 2.
3
one third
negative one third
−3
Answer:
k=4
Step-by-step explanation:
So we have the graphs of f(x) and g(x).
And we know that g(x) is defined as f(kx), where k is some constant.
First, from the graph we can note two points:
For g(x), we have the point (1,10) and for f(x), we have the point (4,10).
ok now can you give me brainlest
In 1846 the depth of the river was 5 feet deep. In 1847 it dropped to 3.2 feet. This year, 1848, it rose to 6.8 feet. Find the percent for EACH change in river depth
Answer:
1846= 0% change
1847= 3.2/5 ×100 = 64% decrease in river
1848= 6.8/3.2 ×100 = 212.5% increase
( used 3.2 because that was the last record)
Write the algebraic expression into words 9m-3
Answer:
You probably already figured it out, but the correct answer is the last one. Subtract 3 from the product of 9 and m
Step-by-step explanation:
Reason for this is 9m is the same as 9 multiplied by m, or the product of 9 and m. You always do multiplication before subtracting or adding, therefore you are subtracting 3 FROM the product of 9 and m
I hope this was clear
Brainiest if it helped?
Its ok if not. Have a great day and good luck with school!
1. 5 + x = -2
2. 8m = 48
Solve this problems giving brainliest
Answer: 1. x=-7 2. m=6
Step-by-step explanation:
1. 5 + x=-2
to get the x by itself, you need to subtract 5 from both sides
5-5 +x = -2-5
there for 0 + x = -7 which means x=-7
2. to get 8m to just m, you need to divide 8m by 8. and what you do to one side of the equation, you need to do to the other. therefore 8m/8=48/8 and 48/8=6. therefore m=6
Answer:
1. 5+x=-2
x=-2-5
x= -7
2. 8m=48
m= 48/8
m= 6
Please Mark BRAINLIEST as promised!
11b.) How many students have
between 10 and 25 video games?
5
20
25
10
15
Number of video games
11c.) How many students have
fewer than 5?
Is there a graph or a chart for this question?
A __________ is a specific number whose value does not change.
Answer:
Constant
Step-by-step explanation:
which phrase describes the solution set for this function?
f(x)= 2(x-1)^2 +4
A.) two complex solutions
B.) one real solution
C.) two real solutions
D.) one real solution and one complex solution
Answer:
Step-by-step explanation:
C
Answer:c two real solutions
Step-by-step explanation:
Please can you help me
find the positive difference between 16 and -2
Answer:
14
Step-by-step explanation:
16-2= 14
Hope this helps!
Which of the following is a solution to the equation 1649
Answer:
But what do we have to do ? like add subtract or multiply? i dont know
Step-by-step explanation:
is associative property grouping or reordering
Answer:
The associative property is grouping
Step-by-step explanation:
Answer:
The associative property is the rule that includes grouping of numbers.
Step-by-step explanation:
Make my life easier and do 5-7 please.
Answer: 5. -64 6. 81 7. 144
Step-by-step explanation:
5. -4 x -4 = +16. +16 x -4 = -64
6. -3 x -3 = 9. 9 x -3 = -27. -27 x -3 = 81
7. kiera + 11 of her friends = 12 people total if 12 people each give fliers to 12 people, its 12 x 12 which is 144
Answer:
(-4)³; (-3)⁴; 12²Step-by-step explanation:
Q5-4 * - 4* - 4 = (-4)³Q6-3 * -3 * -3 * - 3 = (-3)⁴Q7Each 12 people gives 12 fliers to others. The number of people who gets fliers is:
12 * 12 = 12²Plz help will give 100 points
Answer: i think is d not sure tho
Step-by-step explanation: