3 years ago

4. Use the equation A = bh to calculate the

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

3 0

Answer:

Step-by-step explanation:

36 = 9*h

9*h = 36

h = 36/9

h = 4

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Solve : 20-9x=11 4(2x+1)=8 5(2x+5)=-15 3(8x+1)=-21

laila [671]

20-9x=11
-9x=11-20
-9x= -9
x= -9/(-9)
x=1

4(2x+1)=8
2x+1=8/4
2x+1=2
2x=2-1
2x=1
x=1/2
x=0.5

5(2x+5)=-15
2x+5= -15/5
2x+5= -3
2x= -3-5
2x= -8
x= -8/2
x=-4

3(8x+1)=-21
8x+1= -21/3
8x+1= -7
8x= -7-1
8x =-8
x= -8/8
x= -1

4 0

3 years ago

If you can walk 3 1/3 miles in an hour, how many miles can you walk in 30 minutes, given the

Vedmedyk [2.9K]

Answer:

d = 1.67 miles

Step-by-step explanation:

Given that,

Speed of a person, $s=3\dfrac{1}{3}\ mph$

We need to find how many miles can you walk in 30 minutes, given the same pace.

30 minutes = 0.5 h

$3\dfrac{1}{3}\ mph = \dfrac{10}{3}\ mph$

Speed = distance/time

$d=v\times t\\\\d=\dfrac{10}{3}\ mph\times 0.5\ h\\\\d=1.67\ miles$

So, the person will cover a distance of 1.67 miles

8 0

3 years ago

A box contains paper clips of three different sizes. The numbers of each size of paper clip are listed below.

Bond [772]

Answer:

$\frac{7}{10}$

Step-by-step explanation:

Add all paper clip sizes together:

$100 + 250 + 150 = 500$

They want the probability of either a small or medium being chosen, so you add both paper clips sizes together.

$100 + 250 = 350$

Now put the number of small and medium paper clips together over the total number of paper clips to find the probability.

Can divide 350 and 500 by 50, which simplifies it down to 7/10.

$\frac{350}{500} = \frac{7}{10}$

8 0

3 years ago

Read 2 more answers

Marcy is making a hooked circle shaped rug for her mother. The circumference of the circle shaped rug is 56.52 inches. What is t

maria [59]

A = C²/(4π)
A = (56.52 in)²/(4π) ≈ 254.2 in² . . . . the area of the rug

4 0

3 years ago

A girl always keep her laptop at right angle, if we make a triangle by keeping one paper on laptop. one angle formed is 60. what

slega [8]

30 because the angles of the triangle should be 180. Since we know one is 90 the other is 60 so 180-(90+60)=30

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3 years ago