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Sphinxa [80]
3 years ago
9

write an equation that would allow you to solve the following problem. mart'a jump rope is 10 inches shorter than 3 times the le

ngth of dilbert's rope. if both of their ropes laid together end-to-end measure 120 inches long, how long is Marta's jump rope?
Mathematics
1 answer:
mars1129 [50]3 years ago
8 0

Answer:

Step-by-step explanation:

m=marta's rope

d=dilbert's rope

3d-10=m

m+d=120

Then you can substitute equation 1 into the second one

(3d-10)+d=120

3d-10+d=120

4d-10=120

4d=130

d=32.5

m+d=120

m+32.5=120

m=120-32.5

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79.5%

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\frac{175-97.5}{97.5} =0.795

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Plz answer this correctly to get more points
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Answer: x = 30°

Concept:

Here, we need to know the idea of an isosceles triangle and the vertical angle theorem.

An <u>isosceles triangle</u> is a triangle that has any two of its sides equal to each other. Also, the angles opposite these equal sides are equal, which is basically the base angles.

The <u>vertical angle theorem</u> states that two vertical angles formed when two lines intersect each other are always equal to each other.

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<u>Find the other base angle of the isosceles triangle.</u>

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Since the definition said that the base angles are equal, the other base angle would also be x.

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Just as angle x and 30°, are vertical angles formed by intersection, therefore, \boxed{x=30}

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8 0
2 years ago
Demarcus has to wrap a gift for his friend's birthday party. The gift is in a rectangular box with the dimensions shown below. H
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The surface area of the box is <u>1048 square inches</u>

<h3>How to calculate the total surface area of the box</h3>

The formula for calculating the surface area of the prism is expressed as:

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