Help me and explain / gimme answers to number one

Mathematics

2 answers:

mina [271]4 years ago

8 0

Formula = b*h / 2

base = 15 + 6 =21
height = 8

21 * 8 = 168

168/2 = 84

The area is 84 in.

Hope this helped☺☺

Anna [14]4 years ago

5 0

Area of triangle = 1/2 x base x height

base = 15 + 6 = 21
height = 8

Area of triangle = 1/2 x 21 x 8 = 84 in²

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Answer: Area = 84 in²
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OLga [1]

Answer:

72 adults

22 children

Step-by-step explanation:

Let c = no. of children

a = no. of adults

Then 4c = total sales for the children and

7a = total sales for the adults

So, a + c = 94 and 7a + 4c = 592

-4a - 4c = -376

3a = 216

a = 72 adults

72 + c = 94

c = 22 children

4 0

3 years ago

Solve for u. -24 = u ÷ 6 u = ____

kati45 [8]

The value of u is -144

Solution:

Given that,

$-24 = u \div 6$

We have to solve for "u"

From given,

$-24 = u \div 6$

Convert the division problem into multiplication, by changing the division sign to multiplication sign. Then invert the number to right of division sign

Thus we get,

$-24 = u \times \frac{1}{6}\\\\\frac{u}{6} = -24$