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gregori [183]
3 years ago
14

Solve by elimination 4x-8y=8 -5x-y=-21

Mathematics
1 answer:
astra-53 [7]3 years ago
7 0
X will equal 2, Y will equal 1
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A bag of marbles contains 40 red marbles, 54 blue marbles, and 29 yellow marbles. Which of the following represents the ratio of
JulsSmile [24]

Answer:

\frac{29}{40}

Step-by-step explanation:

we know that

To find the ratio of yellow to red marbles, divide the numbers of yellow marbles by the number of red marbles

Let

x----->  the numbers of yellow marbles

y----> he number of red marbles

we have

x=29, y=40

so

\frac{x}{y}=\frac{29}{40}

8 0
3 years ago
1. WILL MARK BRAINLIEST!!! HELP!​
MatroZZZ [7]

Answer:

\frac{7}{x+7}

Step-by-step explanation:

<u>Step 1:  Pull a 7 from the top</u>

<u />\frac{7x + 42}{x^2 + 13x + 42}

\frac{7(x + 6)}{x^2 + 13x + 42}

<u>Step 2:  Factor the bottom</u>

<u />\frac{7(x + 6)}{(x + 7)(x + 6)}

<u>Step 3:  Cancel the top (x+6) and the bottom (x+6)</u>

<u />\frac{7}{x+7}

Answer:  \frac{7}{x+7}

6 0
2 years ago
8. Colby and Cheryl work in different local supermarkets. Colby regularly earns $8.90 per hour,
faust18 [17]

Answer:

colby

hourly rate =$8.90

overtime rate = time and a half = 1.5

the hourly overtime rate is the product of the overtime rate and the hourly rate.

hourly overtime rate= overtime rate × hourly rate

= 1.5 × $8.90

= $13.35

Cheryl

hourly rate = $7.10

overtime rate = double time = 2

the hourly overtime rate is the product of overtime rate and the hourly rate.

hourly overtime rate = overtime rate × hourly rate

= 2 × $7.10

= $14.20

<h3>Comparison</h3>

we note that the hourly overtime rate of cheryl is higher than the hourly overtime rate of colby, which implies that cheryl earns more for one hour of overtime.

we are also interested in the difference of the hourly overtime rate:

hourly overtime rate colby — hourly overtime rate cheryl

= $14.20 – $13.35

= $0.85

thus cheryl earns $0.85 more for one hour of overtime than colby .

<h3>result</h3>

<h2>cheryl,$0.85</h2>

그것이 당신에게 도움이되기를 바랍니다 :)

가장 똑똑한 것으로 표시하십시오 :)

좋은 하루 되세요 :)

5 0
2 years ago
HURRY PLS !!! WHAT IS THE VALUE OF X AND Z!!! WILL GIVE BRAINLIEST
sukhopar [10]

Answer:

x° = 79°

z° = 101°

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST!!
fgiga [73]

Answer:

The number of questions he finished will be q.

37 + q = 78

rewrite this

78 - 36 = q

solve

78 - 36 = 42

5 0
3 years ago
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