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laiz [17]
3 years ago
6

815 gallons of gas cost $32. How many gallons of gas can Mike buy for $20?

Mathematics
2 answers:
jenyasd209 [6]3 years ago
5 0

Answer:

509 gallons as 815 gallons divided by 32 = 25.468 and we multiply by 20 to get 509.375 where we round down at 509 to find full gallon, anything less (via decimal) is not a full gallon.

Step-by-step explanation:

olchik [2.2K]3 years ago
5 0

Answer:

39.15 or 39 gallons

Step-by-step explanation:

1. create an equation

815= 32+20x

2. get x by itself

783=20x

3. divide 20 to both sides of the equal sign

39.15=x

4. So Mike can buy 39.15 or 39 gallons of gas for 20$

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5. Add (-6-22) + (-3 2 1).<br> A.-[903]<br> B-[303]<br> C-[603]<br> D.-9-3-5
Scorpion4ik [409]
So it (-6-22)+(321) ? Before I solve this problem?
6 0
3 years ago
25,00 people took part in a cross-country race The number of adults was 4 times the number of children there were 1,200 men.How
erastovalidia [21]

Answer:

Step-by-step explanation:

number of people= 2500

number of children =x

number of adults = 4x

so,  4x+x= 2500

x= 2500/5=500 children

number of men = 1200

number of women = 2500-(1200+500)= 800

4 0
3 years ago
Find the equation of the line through point (5,1) and perpendicular to 5x−y=−3. Use a forward slash (i.e. "/") for fractions (e.
IRINA_888 [86]
Y = -1/5x + 2

A line perpendicular to another line has an opposite reciprocal slope. What opposite means is that you flip the sign (from - to + or from + to -) and reciprocal means that you flip the numerator and denominator (so if line A is perpendicular to line B and line As slope is -3, line Bs slope would be 1/3).

First find the slope of 5x - y = -3
Add y to both sides
5x = y - 3
Add 3 to both sides
y = 5x + 3

So the slope of the line is 5. That means the slope of of the perpendicular line is -1/5.

Plug the slope of the perpendicular line and the point (5, 1) into point slope form to solve the equation

y - y1 = m(x - x1)
y - 1 = -1/5(x - 5)
y - 1 = -1/5x + 1
y = -1/5x + 2
3 0
2 years ago
HELP ME PLZZ I NEED HELP WITH THIS!!
Alina [70]

Answer:

4.50

Step-by-step explanation:

First add 50 and 40 to get 90. Then multiply that by 0.05 to get 4.5.

8 0
3 years ago
An aircraft flew 5 hours with the wind. The return trip took 6 hours against the wind. If the speed of the plane in still air is
Yakvenalex [24]

Answer:

Speed of wind = 23.63 miles per hour

Plane speed in still air = 260 miles per hour

Step-by-step explanation:

Given:

Time taken with wind = 5 hour

Time taken against wind = 6 hour

Assume;

Speed of wind = s

So,

Speed of Plane with wind = (260 + s) miles per hour

Speed of Plane against wind = (260 - s) miles per hour

Distance = speed x time

So,

(260 + s)5 = (260 - s)6

1,300 + 5s = 1,560 - 6s

11s = 260

s = 23.63 miles per hour

Speed of wind = 23.63 miles per hour

Plane speed in still air = 260 miles per hour

5 0
3 years ago
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