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Softa [21]
3 years ago
14

Please show workings on how to do it :)

Mathematics
2 answers:
Korvikt [17]3 years ago
7 0

Answer:

here

Step-by-step explanation:

ratio:

1x, 3x, 5x=180

9x=180

x=180/9

x=20

forgot to mention 1x=cement

3x=sand and 5x=gravel.

I only know first part of the question.

arsen [322]3 years ago
5 0

Answer:

Let the ratio be x,3x,5x

then,

or,x+3x+5x=180kg

or,9x=180

or,x=180/9

or,x=20kg

now,3x=3*20

=60kg

5x=5*20

=100 kg

therefore he doesn't have enough cement and sand but he has enough gravel.

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Keith has landscaping bricks that are 0.75 feet long.
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Answer:

C

Step-by-step explanation:

4 0
3 years ago
The average of their maximum speeds was 260 km/h. If doubled Malcolm’s maximum speed would be 80 km/h more than Ravi’s maximum s
san4es73 [151]

Answer:

Malcolm’s maximum speed is 200 km/h and and Ravi’s maximum speeds is 320 km/h.

Step-by-step explanation:

Let x and y are the maximum speeds ( in  km / h ) of Malcolm and Ravi respectively,

Then according to the question,

\frac{x+y}{2}=260

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Again according to the question,

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Equation (1) + equation (2),

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7 0
3 years ago
Enter the value of p so the expression 5/6 - 1/3n is equivalent to p(5 - 2n).
N76 [4]
I have gotten 1/6 for the value, I think the person below me will answer with more work if you need to know how I got this answer.
7 0
3 years ago
Pleaseeee help me out
Diano4ka-milaya [45]

Answer:

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Step-by-step explanation:

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Hope its right!

4 0
2 years ago
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avanturin [10]

Answer:

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Step-by-step explanation:

Simplify the radical by breaking the radical up into a product of known factors.

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3 years ago
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