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1 year ago

Hi I have no idea how to do this question :)

Mathematics

1 answer:

erik [133]1 year ago

7 0

Answer:

A. 36

Step-by-step explanation:

Because the two angles at the bottom of both the triangles are congruent, the two triangles are similar. Therefore, the corresponding side lengths of the triangles must be proportional to each other

if the area of a triangle is hb/2,

(with h=length of height, b=length of base)

the height of the first triangle is:

25 = 10h/2

50 = 10h

h=5

you can write ratios representing the proportions of the two triangles:

5/x = 10/12 (with x=height of second triangle)

x=6

then find the area of the second triangle with the height (6) and base (12)

(6*12)/2 = 36

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3 years ago

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3 years ago

What adds to give -14 but multiplies to give 48?

dimaraw [331]

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Chang and Carlotta solve this problem in two different ways. You have $50 in your bank account. You make $8 per hour mowing lawn

Daniel [21]

Answer:

8 hours

Step-by-step explanation:

You can solve this problem by inputting the values into an equation. Here is the equation below:

$50 + 8x = 130$

Lets solve for x. First you subtract 50 from 130.

1) $8x = 130 - 50$

2) $8x = 80$

Next, you divide 80 by 8 to get x by itself.

1) $x = \frac{80}{8}$

2) $x = 10$

This means that you must mow lawns for 8 more hours to get a total of $130 in your bank account.

6 0

3 years ago

Use the expression -3/7+10

Aleks [24]

Answer:

a. Jake told the negative value of the expression which cannot be equivalent to the original expression.

b. 10 - $\frac{\textbf{3}}{\textbf{7}}$ g

Step-by-step explanation:

a. The given expression is: $\frac{-3}{7}g + 10$

Multiplying through out by -, we get:

$- 10 + \frac{3}{7}g$ which was the expression given by Jake. Since, it is the negative of the original one, they cannot be equivalent.

b. $-\frac{3}{7}g + 10 = 10 - \frac{3}{7}g$

$= \frac{70 - 3g}{7}$

Hence, the answer.

8 0

3 years ago