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scZoUnD [109]
4 years ago
9

What is the distance between the points (7.8) and (3.9) on a coordinate grid???

Mathematics
2 answers:
mylen [45]4 years ago
6 0

Answer:

3.9

Step-by-step explanation:

if one point is 7.8 and the other is 3.9

you would subtract 7.8 and 3.9

the answer is 3.9 away from each other

Liono4ka [1.6K]4 years ago
4 0
3.9 is the best answer
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a painter bought 8 gallons of paint just enough to cover 2 rooms. One room is twice the size of the other and requires only 2 co
e-lub [12.9K]
So, he's got 8 gallons of paint, to paint the two rooms, of the two rooms, one is twice as big as the other

now, "x" is how many gallons to paint the larger room with only one coat, however, the larger room uses 2 coats, so, the larger room uses 2x of paint
now, the client declined to paint the smaller one

so hmmm as I read... well, we dunno how many coats will go to the smaller room for one, we know the larger will use 2 coats, or 2x.. if we assume the smaller room was going to use say 1 coat or 1/2x

then one can say the painter bought enough for both rooms, 1coat for the small one and 2coats for the larger one

so, the paint the larger room, you'll 2x of paint, for 2coatsand to paint the smaller room, you'll need 1/2 x, because x gallons is how much is needed for the larger room, but the larger room is twice as big, thus the smaller room uses 1/2 of that in gallons

thus, with those assumptions, that the small room will use only 1 coat
\bf \cfrac{1}{2}x+2x=8\implies \cfrac{5x}{2}=8\implies x=\cfrac{16}{5}
that's who many gallons are needed for 1 coat in the larger roomrecall "x" is 1coat for the larger room

now, the client decides to skip the smaller roomso, the painter will only need 2x gallons then

\bf 2x\implies 2\cdot \cfrac{16}{5}\implies \cfrac{32}{5}\implies 6.4\ gallons

he bought 8 gallons, 8 - 6.4, he's got left 1.6 gallons
3 0
3 years ago
Read 2 more answers
This year, when Latifa and Jameel add their ages, the sum is 29. Latifa’s age is 10 less than twice Jameel’s age. The system of
aksik [14]

Answer:

Jameel is 13 and Laitfa is 13 x 2 - 10 = 16

16 + 13 = 29

Step-by-step explanation:

The equation has already been given to us, so we just have to solve it.

According to the question,

L + J = 29

L = 2J - 10

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2J - 10  +  J = 29

add 10 both sides

2J + J = 29 + 10 = 39

3J = 39

J = 39/3 = 13

Done!

5 0
3 years ago
Find the quotient show work please
Papessa [141]
5/68 5 can go into 68 13 times with a remainder of 3 So we add a decimal point and a zero. Carry the 3 and zero down making 30 5 can go into 30 6 times making the answer 13.6
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3 years ago
4-62. Find the area and perimeter of the<br> below shape.<br> 7.6 ft<br> 3 ft<br> 7 ft<br> 7 ft
stepladder [879]

Answer:

area= 59.5    perimeter=31.6

Step-by-step explanation:

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2 years ago
Can someone help me with this?<br>1⁵ + 5² / 25⁰ - 5¹=​
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Answer:

the answer is 21.Here is how I know

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3 years ago
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