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1 year ago

11

Jacob earns $60 in 2 hours , or $150 in 5 hours. Write and equation to represent his earnings.

1 answer:

ruslelena [56]1 year ago

4 0

Answer:

2

Step-by-step explanation:

if you divided each number by the minute time you would then divide both numbers like 2 x 60 + 60 and 5 x 60+60+60+60+60=300 divided that with the two numbers and then you get 2

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If y varies directly as x and y-21 when x<br> is 7, find x when y = -5.

klasskru [66]

Step-by-step explanation:

Since, y varies directly as x:

$\therefore \: y = kx..(1) \\ (k = constant \: of \: proportionality) \\ at \: y = 21 \: and \: x = 7 \\ 21 = k \times 7 \\ k = \frac{21}{7} = 3 \\ plugging \: k = 3 \: in \: equation \: (1) \\ y = 3x..(2) \\ plugging \: \: y = - 5 \: in \: (2)\\ - 5 = 3x \\ x = \frac{ - 5}{3} \\ \: \: \: \: \: \: \huge \red{ \boxed{x = - \frac{5}{3} }}$

6 0

2 years ago

Read 2 more answers

What is the answer ? Please help !!

ch4aika [34]

Answer: p > $\frac{3}{7}$

Step-by-step explanation:

-21p + 69 > -49p + 81

-69 -69

-21p > -49p + 12

+49p +49p

28p > 12 divide both sides by 28

p > 12/28

reduce it p> 3/7

7 0

2 years ago

you can perform 10 push ups in 25 seconds. write an equation that represents the relationship between time x and the number of p

vagabundo [1.1K]

Answer:

Step-by-step explanation:

(10 pushups)/(25 sec) = (⅖ pushup)/sec

Or,

(25 sec)/(10 pushups) = (2.5 sec)/pushup

6 0

2 years ago

Which number is composite?<br> 31<br> 43<br> 37<br> 49

Alina [70]

A composite number is one that can be made by multiply two numbers to each other. Since 49=7*7, 49 is a composite number.

Check:

You can check a multiplication chart, but you will see that 49 is the only one that can be multiplied by 2 numbers

4 0

2 years ago

Find the distance between P1(1, -91°) and P2(3, 335°) on the polar plane.

Dmitrij [34]

Answer:

2.749

Step-by-step explanation:

Use the polar distance formula:

$\sqrt{r_{1}^{2}+{r_{2}^{2}-2 r_{1} r_{2}cos(theta_{1} -theta_{2})$

$\sqrt{10^{2}+{3^{2}-2(1) (3)cos(225-(-91))$

2.749

5 0

2 years ago