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4 years ago

10

What is 5+(-4)___14+(-13)

1 answer:

adelina 88 [10]4 years ago

7 0

5 + -4 is 1

This is because lets say you have 5 cookies, you have -4 cookies, in order for you to have the correct amount, you can’t have -4 cookies so you have to subtract those cookies from 5

So 5-4 is 1

14+ -13 is 1 as well

This is because of the same concept. You can’t have -13 cookies, therefore you have to subtract them!

Hopefully I helped you out, If i didn’t I’m so sorry

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Murljashka [212]

Answer:

see below

Step-by-step explanation:

65 - 32 = 13

13 divide by 65 = 0.20

0.20 x 100% = 20%

so the percentage drop is 20%

therefore, Marcus is correct.

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4 years ago

James is working out and has decided that for every 10 sit-ups he does, he needs to do 4 push-ups. If he does 120 sit-ups, how m

mario62 [17]

Answer:

480 is the answer

Step-by-step explanation:

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4 0

3 years ago

Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8? Quadratic formula: x

OleMash [197]

ANSWER

$x=1.39$ to the nearest hundredth.

EXPLANATION

We have the equation,

$0=2x^2+3x-8$

Which can be rewritten as

$2x^2+3x-8=0$

The question demands the use of the quadratic formula.

Comparing this to the general quadratic equation;

$ax^2+bx+c=0$

$a=2,b=3,c=-8$

The quadratic formula is given by;

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

We now substitute all the values in to the formula;

$x=\frac{-3\pm\sqrt{(3)^2-4(2)(-8)}}{2(2)}$

We simplify to obtain;

$x=\frac{-3\pm\sqrt{9+64}}{4}$

$x=\frac{-3\pm\sqrt{73}}{4}$

We now split the plus or minus sign to obtain;

$x=\frac{-3-\sqrt{73}}{4}$

This implies that;

$x=-2.89$

Or

$x=\frac{-3+\sqrt{73}}{4}$

This will evaluate to;

$x=1.39$

Hence, the positive solution rounded to the nearest hundredth is

$x \approx 1.39$

6 0

4 years ago

Read 3 more answers

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Yuri [45]

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(7/2)(y+1)=3(x+3)

7(y+1)=6(x+3)

7 - 6(3) = 6x - 7y

6x - 7y = -11

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3 0

3 years ago

Which numbers belongs in the box?

EleoNora [17]

Answer:

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Step-by-step explanation:

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3 0

4 years ago

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