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Anni [7]
3 years ago
15

Which expression is equivalent to 30(1/2x-2)+40(3/4y-4)

Mathematics
1 answer:
Travka [436]3 years ago
7 0

Answer:

C, assuming you left off the y on the 30

Step-by-step explanation:

30(.5x-2)+40(.75y-4)

Distribute

15x-60+30y-160

Simplify

15x+30y-220

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If your car used 19.2 gallons of gas to go 1293.6 miles, how many miles per gallon (mpg) did the car get?
Anna007 [38]
G=m/x
G-gallons
m-miles
x-miles per gallon
19.2= 1293.6/x
x=1293.6/19.2
x= 67.375mpg
Therefore, the vehicle traveled 67.375 miles to 1 gallon
5 0
3 years ago
According to this diagram, what is cos 28°? 62° 17 8 28° 90° 15 O A. 17 15 O B. 8 17 O c. 15 17 O D. O E. 8 15 15 OF.​
VikaD [51]

Answer:

C. Cos(28) = \frac{15}{17}

Step-by-step explanation:

Recall: SOHCAHTOA

Thus,

Cos(\theta) = \frac{Adjacent}{Hypotenuse}

Reference angle = 28°

Adjacent = 15

Hypotenuse = 17

Plug in the values

Cos(28) = \frac{15}{17}

4 0
3 years ago
How do you solve this equation? <br> 8 - 3 (2m-5)
attashe74 [19]
8 + -3 * 2m + (-3)(-5) = 8 + -6m + 15 = 8 + -6m + 15 = (-6m) + (8 + 15 ) = -6m + 23


so the answer is  -6m + 23
8 0
3 years ago
Costs of homes can be very different in different parts of the United States. a. A 450-square-foot apartment in New York City co
VLD [36.1K]

Answer:

The cost of homes per square foot differs in different part of the United states. The cost of homes per square foot is gotten by using the formula:

cost of homes per square foot = Cost of apartment / area of apartment

1) Cost of apartment = $540000, area of apartment = 450 ft²

cost of homes per square foot = Cost of apartment / area of apartment = $540000/ 450 ft² = $1200 / ft²

2) cost of homes per square foot = $110/ ft²,  area of apartment = 2100 ft²

cost of homes per square foot = Cost of apartment / area of apartment

$110 / ft² = Cost of apartment / 2100 ft²

Cost of apartment = $110 / ft² × 2100 ft² = $231000

Step-by-step explanation:

Hope this helps plz mark brainiest  

5 0
3 years ago
Read 2 more answers
NEED HELP!!!
ss7ja [257]
D. If you ask the amount of projects completed using the computer lab you are asking a statistical question. Hope this helps!
6 0
3 years ago
Read 2 more answers
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