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Leno4ka [110]
3 years ago
6

The question on the picture please

Mathematics
1 answer:
pogonyaev3 years ago
7 0

Answer: D. 21

Step-by-step explanation: 4/10=X/15 then X=6. Plug that in which is 6+15=21

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Naomi has earned $54 mowing lawns the past 2 days. She worded 21/2 hours yesterday and 41/4 hourse today. If Naomi is paid the s
Klio2033 [76]
She worked 2 and 1/2 hours yesterday, and today she did 4 and 1/4 hours.

first off, let's check how many hours she worked total, and divide 54 by it.

so, first off, let's convert the mixed fractions to "improper" and add them up.

\bf \stackrel{mixed}{2\frac{1}{2}}\implies \cfrac{2\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{5}{2}}
\\\\\\
\stackrel{mixed}{4\frac{1}{4}}\implies \cfrac{4\cdot 4+1}{4}\implies \stackrel{improper}{\cfrac{17}{4}}\\\\
-------------------------------

\bf \cfrac{5}{2}+\cfrac{17}{4}\impliedby \textit{our LCD will be 4}\implies \cfrac{(2\cdot 5)+(1\cdot 17)}{4}
\\\\\\
\cfrac{10+17}{4}\implies \cfrac{27}{4}\implies \stackrel{total~hours}{6\frac{3}{4}}
\\\\\\
\cfrac{\stackrel{wages}{54}}{\stackrel{hours}{6\frac{3}{4}}}\implies \cfrac{54}{\frac{27}{4}}\implies \cfrac{\frac{54}{1}}{\frac{27}{4}}\implies \cfrac{54}{1}\cdot \cfrac{4}{27}\implies \cfrac{216}{27}\implies 8~\frac{\$}{hr}
6 0
3 years ago
(3, -2), y=x + 4 i need help to find the parallel equation. please explain how you got the answer so i know how to solve.
GarryVolchara [31]
I hope this helps you

3 0
3 years ago
Write x-7y=-7 in slope intercept form
kicyunya [14]
Answer: y=1/7x+1

Yayayayayaya
8 0
2 years ago
Read 2 more answers
Which numbers are greater?
Julli [10]

Since we know that percentages and decimals go by decimal place we can solve this. For Example, 10% is just 0.1, so if we apply this to the questions we can solve them

1) 49%

2)16%

3) Equal

4)12%

5)1.2

6)31/50

7)50 1/4

8)1/8

8 0
3 years ago
Suppose a video store charges non-members $4 to rent a video. A membership costs $21 and then videos cost only $2.50 to rent. Ho
densk [106]

Answer:

You need to rent  14  videos, and you'll pay the same amount for both. Renting 15 will make the membership a better method of payment.

Step-by-step explanation:

Let Number of videos to be rented be x;

Given:

For non members;

Cost of renting 1 video = $4

Cost for renting x videos = 4x

For Members;

Membership cost = $21

Cost of renting 1 video =  $2.50

Cost of renting x video =  2.5x

We can create an equation. Say the number of videos you rent is given by x . We can write that, if we rent  x  videos without membership, we'll have to pay 4x . If we rent the same amount of videos with membership, we'll have to pay 21+2.5x.

Hence the equation can written as

4x=21+2.5x\\4x-2.5x=21\\1.5x=21\\x=\frac{21}{1.5}=14

Hence You need to rent  14  videos, and you'll pay the same amount for both. Renting 15 will make the membership a better method of payment.

5 0
3 years ago
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