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Nat2105 [25]
3 years ago
10

Rueben has some photographs printed. The cost is £1.50 for postage and 15p for each print. The total cost for Rueben is £3.90. H

ow many photographs does he have printed?
Mathematics
1 answer:
vampirchik [111]3 years ago
3 0

Answer:10

Step-by-step explanation:if i did this right you just do 15 divided by 1.50 and you get 10

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Erin was completing the square of the quadratic function in order to find the extreme value. What is the next step in the proces
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Step-by-step explanation:

ax^2+bx+c=0

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if leading term is negative then opens down and has a <u>max</u>

leading term is positive

1x^2+8x

it has a min

to complete the square, move c aside take 1/2 of b and square it

b=8

8/2=4

4^2=16

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x^2+8x+16+6=0+16

factor perfect square

(x+4)^2+6=16

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7 0
3 years ago
How many 1/ 4-inch cubes does it take to fill a box with width 2 1/ 4 inches, length 2 1/ 2 inches, and height 1 3/ 4 inches?
lys-0071 [83]

Answer:

630.

Step-by-step explanation:

<u>Given the following data;</u>

Dimensions for cube = ¼ inches

Volume \; of \; cube = \frac {1}{4} * \frac {1}{4} * \frac {1}{4}

Volume = 1/64 cubic inches.

For rectangular box;

Length = 2½ = 5/2 inches.

Width = 2¼ = 9/4 inches.

Height = 1¾ = 7/4 inches.

Volume \; of \; cube = \frac {5}{2} * \frac {9}{4} * \frac {7}{4}  

Volume = 315/32 inches

Therefore, to find the amount of cubes;

Number \; of \; cubes = \frac {Volume \; of \; box}{Volume \; of \; cube}

Substituting into the equation, we have;

Number \; of \; cubes = \frac {\frac {315}{32}} {\frac {1}{64}}

Number \; of \; cubes = \frac {315}{32} * 64

Number \; of \; cubes = 315 * 2

Number of cubes = 630

6 0
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
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4(x+9)  

Solution

1) <span>Distribute
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2) <span>Simplify</span><span> </span><span>4×9 t</span><span>o</span><span> </span><span>36
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