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Yakvenalex [24]
3 years ago
5

If 2 over 5 of a ton of concrete covers 5 over 6 of a wall, how many tons of concrete are required to cover the entire wall?

Mathematics
1 answer:
densk [106]3 years ago
6 0
Set up a proportion and use the cross multiply method to solve for x.
2/5 divided by 5/6 =x
2/5 divided by 5/6 is equal to 2/5 times 6/5
x=12/25 ton
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The question is <br> 8x+tx=r <br> What you wanna solve for is x
ella [17]

Answer:

x = r/(8+t)

Step-by-step explanation:

8x + tx = r

Using distributive property,

x(8+t) = r

Divide by 8+t on both sides,

x = r/(8+t)

3 0
2 years ago
In the diagram below angle AED=(4n-20)° and angle BEC=(2n-16)°. What is the measure of angle CED in degrees
Pavlova-9 [17]

Check the picture below.

so, bearing in mind that vertical angles are equal, thus ∡AED = ∡BEC, and we know that ∡BEC = 52 = ∡AED, so those two angles added up are 104°.

now, a circle has a total of 360°, if we take away those 104° from the red angles, what's leftover is just 256°, well, the green angles there are also vertical angles and thus twins, so each one will take half of 256°.

∡BEA = 128° = ∡CED.

3 0
3 years ago
What do you add to 2/9 to make 1?
marshall27 [118]

Answer:8

Step-by-step explanation:

8 0
3 years ago
Juilo spent $64 and now has no money left.He( )had before his purchase​
lapo4ka [179]

Answer:

64->-?

Step-by-step explanation:

he spent 64 and now he has none so he spent all his money

6 0
3 years ago
Organize your data and find the rate of change.
LuckyWell [14K]
A .E is 7 inches for the left arm
E is 8 1/2 inches for the left foot
the inputs look like the length of the arm (ie x) the outputs are the length of the foot 
<span>rate of change=<span>change in y change in x</span></span> use the data you gathered or this equation they give you  = 0.860 •  + 3.302


B. find the difference in y, then the difference in x, then divide (y over x) to get the slope
8-7/7 1/2-6 1/2 = 1/1 =1

C.you plug in any (x,y) point you used to find the slope
Solve for B
y = mx+b y = 1*x + b 7.5 = 1*8 + b b =
7.5 - 8 = -0.5
<span>y = x - 0.5</span>

Hope this helps




8 0
3 years ago
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