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kodGreya [7K]
3 years ago
9

15 pointss! please help asap i need to turn the assignment in

Mathematics
1 answer:
valentinak56 [21]3 years ago
3 0

Answer:

I think it goes like this:

4x+5x=180

9x=180

x=180:9

x=20

Step-by-step explanation:

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PLEASE ANSWER + BRAINLIEST !!!
denis23 [38]

Answer:

I believe that the answer is D, I think I had this question but I can't really remember.


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6 0
2 years ago
The water level of a lake fell by 1 1/4 in. during a 1 1/2 week long drought what is the average rate at which the water level c
Luda [366]

Answer:

\frac{5}{6}  inches per week

Step-by-step explanation:

This is a very simple ratio problem. Basically,

<em>If 1\frac{1}{4} inches in  1\frac{1}{2} week, then HOW MANY INCHES (let it be x) in 1 week???</em>

<em />

We set up two ratios and cross multiply and solve for x:

\frac{1\frac{1}{4}}{1\frac{1}{2}}=\frac{x}{1}\\1\frac{1}{4}*1=1\frac{1}{2}*x\\1\frac{1}{4}=1\frac{1}{2}x\\x=\frac{1\frac{1}{4}}{1\frac{1}{2}}\\x=\frac{\frac{5}{4}}{\frac{3}{2}}\\x=\frac{5}{4}*\frac{2}{3}\\x=\frac{5}{6}

So average rate at which the water level changed every week is 5/6 inches per week.

4 0
3 years ago
What is the value of x in the simplified expression?
never [62]

Answer:

27

Step-by-step explanation:

6 0
3 years ago
What is the value of x to the nearest tenth? <br><br> 12.0<br><br> 7.2<br><br> 4.8<br><br> 9.2
RUDIKE [14]
Line x is the mid point of both lines
 so the triangle becomes base = 19.2/2 = 9.6
hypotenuse = 24/2 = 12

using Pythagorean theorem:

x^2 = 12^2 - 9.6^
x^2 = 144 - 92.16
x^2 = 51.84

x = sqrt(51.84) = 7.2
4 0
2 years ago
Read 2 more answers
A restaurant used 4 pounds of potatoes during a lunch rush if they used one 12th as much beef how many pounds of beef did they u
IrinaK [193]
The answer is 48 because you multiple four and 12 because they used twice the amount
3 0
3 years ago
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