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baherus [9]
2 years ago
15

Simultaneous Equations - 5p-2q=9 3p+2q=7

Mathematics
1 answer:
Luda [366]2 years ago
4 0

Apnswer:

p = 1

q = -2

Step-by-step explanation:

5p - 2q = 9   eqn 1

3p + 2q = 7    eqn 2

subtract equation 2 from 1

2p = 2

p = 1

Substitute for p in equation 1

5(1) - 2q = 9

5 - 2q = 9

-2q = 4

q = -2

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Divide a 8 foot sandwich into pieces that are 3/4 of a foot long. How many 3/4 foot pieces are there?
FrozenT [24]

Answer:

6

Step-by-step explanation:

3/4*8=6

8 0
2 years ago
Which of the following numbers is the smallest 0.008 or 1/3 or 0.048 or 0.36 or 1/9
RideAnS [48]

Answer:

The smallest number is 0.008

Step-by-step explanation:

To find out which number is the smallest we convert the decimals to percentages

That's

0.008 × 100= 0.8%

1/3 × 100 = 33.3%

0.048 × 100 = 4.8%

0.36 × 100 = 36%

1/9 × 100 = 11.1%

Comparing from the above percentages the smallest one is 0.8% which is

0.008.

Hope this helps you.

4 0
3 years ago
A salsa recipe uses green pepper, onion, and tomato in the extended ration 1 : 3 : 9. How many cups of onion are needed to make
Elanso [62]
Let x be a variable.

Using the ratio and the given number of 117, we can create the following formula:

1x + 3x + 9x = 117, where 3x is the cups of onion

Simplify this equation.

13x = 117

Divide both sides by 13

x = 9

We want to solve for 3x, so multiply both sides by 3

3x = 27

As I started earlier, 3x is how many cups of onions is needed; thus, 27 is our answer. Hope this helps! :)
7 0
3 years ago
Read 2 more answers
35 – 2.4 ( 7 – 5)<br> Show each step
saveliy_v [14]

Answer:

35 - 2.4(7-5)

= (35/1)-(24/10)(7-5)

= [(35×10)/(1×10)]-(24/10)(2)

= (350/10)-(24/10)(2)

= (350-24)/10(2)

= 326/10(2)

= 32.6(2)

= 65.2

Thank you.

BY GERALD GREAT.

5 0
2 years ago
Sam's parents gave him a map to reach to
irina1246 [14]
2.5 km because 1.5 is half of 3 and half of 5 is 2.5
5 0
2 years ago
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