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2 years ago

The volume of a barrel of oil is 257166 cm3 round this figure to the nearest hundred thousand

Mathematics

1 answer:

Fudgin [204]2 years ago

3 0

Answer: Hope this helps :D

the answer is 300000 cm3

Step-by-step explanation:

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5.5r - 8.35s when r = 12 and s = 4.

nataly862011 [7]

Answer:

32.6

Step-by-step explanation:

just do this

5.5(12)-8.35(4)

then solve

6 0

3 years ago

The sum of all three numbers is 12. The sum of twice the first number, 4 times the second number, and 5 times the third number i

DaniilM [7]

Answer:

The numbers are 7, 4 and 1

Step-by-step explanation:

Let the numbers =x, y, z.

The sum of all three numbers is 12, x+y+z=12--------i

The sum of twice the first number, 4 times the second number, and 5 times the third number is 35, 2x+4y+5z=35-------ii

The difference between 8 times the first number and the second number is 52, 8x-y=52---------iii

Now, from (i),z =1-x-y--------iv

substitute (iv) in (ii),

2x+4y+5(12-x-y)=35

2x+4y+60-5x-5y=35

collect like terms

-3x-y=-25

that is, 3x-y=25--------v

solving (iii) and (v) simultaneously (add iii and v), we have

11x=77

divide both sides by 11 to obtain x=7

Put x=7 in (v)

3(7)+y=25

21+y=25

implies y=25-21=4

put x=7 and y=4 in (iv)

z=12-7-4=1

Hence, the numbers are 7, 4 and 1.

4 0

3 years ago

You are going to play mini golf. A ball machine that contains

mariarad [96]

There is a 24.71% chance of getting a blue golf ball

6 0

3 years ago

Abigail had a fish tank that was in the shape of a box. The dimensions were 12 inches deep by 24 inches wide by 18 inches tall.

pochemuha

We have to find the volume of tank. The tank is in cuboid or rectangular prism shape
Volume = depth*height*width
= 12*24*18
= 5184 cubic inches

4 0

2 years ago

A line segment with endpoints A(-2, 1) and B (2, 1) is dilated with a dilation centered at the origin and a scale factor of

lesya692 [45]

Answer:

Step-by-step explanation:

I will assume that the scale factor is 2.5

A'(-5,2.5) True

AB || A'B' True

?? What does ABAB" mean?

A'B' is an enlargement of AB True

8 0

3 years ago