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3 years ago

Determine which equation below have x = 15 as a solution.

Mathematics

2 answers:

liq [111]3 years ago

4 0

Answer:

C, 4+x=15

Step-by-step explanation:

since you're trying to find x you need to isolate it, so use the other numbers you have, 19 and 4, subtract 4 from 19, (19-4) to get x=15.

yawa3891 [41]3 years ago

3 0

The answer is C because 4 + 15 = 19.

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In an endurance race, Rachel ran

Reil [10]

Answer:

$31\frac{1}{5}\ miles$

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

The distance is equal to multiply the speed by the time

we have

$speed=9\frac{3}{5}\ \frac{miles}{hour}$

$time=3\frac{1}{4}\ hours$

$distance=(9\frac{3}{5})(3\frac{1}{4})$

Convert mixed number to an improper fraction

$9\frac{3}{5}=9+\frac{3}{5}=\frac{9*5+3}{5}=\frac{48}{5}$

$3\frac{1}{4}=3+\frac{1}{4}=\frac{3*4+1}{4}=\frac{13}{4}$

substitute

$distance=(\frac{48}{5})(\frac{13}{4})=\frac{624}{20}=31,2\ miles$

Convert to mixed number

$31.2\ mi=31+0.2=31+\frac{1}{5}=31\frac{1}{5}\ miles$

3 0

3 years ago

What is the x intercept of y + 4 =− 4(x − 1)

vivado [14]

Answer:

Step-by-step explanation:

since the "b" in y=mx+b ends up being 0, that means that the y intercept is 0, which also means that the x intercept is 0.

7 0

3 years ago

Today only, a desk is being sold at a 29% discount. The sale price is $213.

blondinia [14]

Answer:

$274.77

Step-by-step explanation:

213.00 ÷29 =61.769999 then add 213.00 plus 61.76

I actually rounded up maybe I shouldn't of then answer would be $274.76. im not postive this is correct .

4 0

3 years ago

True or False: The domain of an inverse of a relation is the domain of the original relation.

Oliga [24]

This statement is false

3 0

3 years ago

Can someone pleaseeee help and if you’re correct i’ll give brainliest

bagirrra123 [75]

......Answer: V = 1046.6

4 0

3 years ago