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WINSTONCH [101]
4 years ago
8

ANSWER ASAP!! I know this is confusing, but apparently you have to answer a, b, c, and d.

Mathematics
1 answer:
stiks02 [169]4 years ago
3 0

Answer:

A. (15/150)*20 = 2 miles

B. (6/20)*150 = 45 minutes

C. 20/2.5 = 8 miles/hour

D. 20/150 = 0.13 miles / minute

Step-by-step explanation:

You might be interested in
Write the following using algebraic notation, using the letter x for any unknown numbers:
Artist 52 [7]

Answer:

2x-9

Step-by-step explanation:

a number=x

multiply by 2

2x

subtracted by 9

2x-9

3 0
3 years ago
Monet earned $84 for helping 7 of her neighbors clean their garages. How much would she make if she helps clean 9 garages?
iogann1982 [59]
84/7= $12 per garage
12(9)= $108
She would make $108
4 0
3 years ago
A new car is purchased for 15500 dollars. The value of the car depreciates at 7.5% per year. What will the value of the car be,
mixer [17]

Answer:

\$9,709.17  

Step-by-step explanation:

we know that

The  formula to calculate the depreciated value  is equal to  

V=P(1-r)^{x}  

where  

V is the depreciated value  

P is the original value  

r is the rate of depreciation  in decimal  

x  is Number of Time Periods  

in this problem we have  

P=\$15,500\\r=7.5\%=0.075\\x=6\ years

substitute

V=\$15,500(1-0.075)^{6}=\$9,709.17  

4 0
3 years ago
If f(x)=square root 4x+9+2, which inequality can be used to find the domain of f(x)?
jenyasd209 [6]

we have

f(x)=\sqrt{4x+9} +2

we know that

The radicand must be greater than or equal to zero

so

4x+9 \geq0 \\ 4x\geq -9 \\x\geq -\frac{9}{4} \\ x\geq -2.25

the domain is is the interval--------> [-2.25,∞)

therefore

<u>the answer is</u>

4x+9 \geq0


8 0
3 years ago
Read 2 more answers
2x+3y=0 and x+2y=-1 <br> Solve by substitution
dmitriy555 [2]

Answer:

The solution of the given equations is (-3,2)

Step-by-step explanation:

<u>Step:1</u>

The Given equations are 2 x+3 y=0 .......(1)

                                          x+2 y-1 =0.........(2)

<u>Step 2:-</u>

Solving<u> </u>both equations by using substitution method

multiply equation (2) with number '2' ,  

2 x+4 y-2=0.......(3)

subtracting the equations (1) and (3) and cancelled 'x' terms

we get 3y-4y=0-2

y=2

<u>Step 3:</u>-

substitute y= 2 in equation (1) we get

2 x+3 y=0

2 x+3(2)=0

2 x=-6

x=-3

<u>Final answer</u>:-

The solution of the given equations is (-3,2)

8 0
4 years ago
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