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kow [346]
1 year ago
8

Train A travels 30 miles in 20 minutes at a constant speed. Train B travels 20 miles in 15 minutes at a constant speed. Redo Whi

ch train is going faster? Circle your answer and show how you figured it out below, Train A Train B
Mathematics
1 answer:
krek1111 [17]1 year ago
3 0
\begin{gathered} \text{Train A}\Rightarrow\frac{30\text{ miles}}{20\text{ minute}}=1.5\text{ miles/minute} \\ \text{ Train B}\Rightarrow\frac{20\text{ miles}}{15\text{ minute}}=1.34\text{ miles/minute} \\ \text{The train A is going faster.} \end{gathered}

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Twice the sum of a number and 5 is equal to three times the difference of the number and 2
Alexxx [7]

Answer:16

Step-by-step explanation:

Let the number be X

Twice the sum of a number and 5

= 2X+5

Three times the difference of the number and 2

= 3(X - 2)

Since Twice the sum of X and 5 is equal to three times the difference of the X and 2, This means

2(X + 5 )= 3(X - 2)

2X +10 = 3X - 6

3X -2X = 10 + 6 = 16

X = 16

Check

2×(16+5) =3×(16-2)

2×21 = 3×14

42 = 42

3 0
2 years ago
The perimeter of a triangle is 19z-7. One side is 5z-9 and one side is 8z+3. What is the remaining side ?
insens350 [35]
19z-7 - ( 5z-9 + <span>8z+3)
= 19z - 7 - (13z - 6)
= 19z - 7 - 13z + 6
= 6z - 1

answer
remaining side = </span> 6z - 1
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2 years ago
The angle of depression from the basketball hoop to Claire’s eyes is 9.2°. The vertical distance from the ground to Claire’s eye
Marrrta [24]
<span>we will isolate that right triangle marked off with the little angle thing.
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</span>cross multiply.
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8 0
2 years ago
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xz_007 [3.2K]

Answer:

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Step-by-step explanation:

Given

f(x) = 12(0.82)^{x}

Substitute x = 1 into f(x) , that is

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7 0
2 years ago
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