3 years ago

8x = 12y and 2y + 10 = 22

Mathematics

1 answer:

scoray [572]3 years ago

3 0

Answer:

y=6

Step-by step: subtract 10 from 22 then divide it by 2 to get y.

2y+10=22

-10

2y=12

12/2=6

y=6

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7. Ben's earnings for work he did from Monday through Saturday were: $78,

Agata [3.3K]

Answer:Average daily pay =$90

Step-by-step explanation:

Step 1

Formulae

Average daily earnings = Total amount of earning from Monday through Saturday/ number of days

Step 2

Monday $78,

Tuesday $94

Wednesday $115

Thursday $108

Friday $67

Saturday $78

Total earnings for Ben = $540

Average daily pay= $540/6 ==$90

8 0

3 years ago

At 1 p.m., the number of cars in a parking lot is 78. Given the formula found in the first part of the question, An=78⋅1.09n, es

Harrizon [31]

Answer:

At 6 p.m., the number of cars in a parking lot is 120

Step-by-step explanation:

At 1 p.m., the number of cars in a parking lot is 78.

Given,

$A_n=78\cdot 1.09^n$

Note that

$A_0=78\cdot 1.09^0=78\cdot 1=78$

So, 1 p.m. goes for n = 0, then

6 p.m. goes for n = 5

Thus,

$A_5=78\cdot 1.09^5\approx 120$

4 0

3 years ago

A stockbroker sold 70 shares of stock $14.52 each. what was the total amount of the sale?

Olenka [21]

Answer:

$1016.4 - if this is just a simple multiplication question

7 0

3 years ago

Someone please help me??

lapo4ka [179]

The standard equation of a circle with centre (xc,yc) and radius R is given by

$(x-x_c)^2+(y-y_c)^2=R^2$

Substituting
centre (xc,yc) = (4,-3)
R=2.5

The equation is therefore

$(x-x_c)^2+(y-y_c)^2=R^2$
$(x-4)^2+(y-(-3))^2=2.5^2$
$(x-4)^2+(y+3)^2=2.5^2$ or
(x-4)^2+(y+3)^2=6.25

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3 years ago

Its length is

melamori03 [73]

Answer:

$100

Step-by-step explanation:

40x30=1200

1200/12=100

7 0

3 years ago