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gavmur [86]
3 years ago
12

Rita is adding 3 + (–8) + 1. She rewrites the expression as 3 + (–1) + 8. What is Rita’s error?

Mathematics
2 answers:
KonstantinChe [14]3 years ago
7 0
<span>She used the associative property which should only be used with positive numbers..</span>
BigorU [14]3 years ago
6 0

Answer:

She used the associative property which should only be used with positive numbers

Step-by-step explanation:

c is the answer

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Which could be a step used when solving the equation 5x + 10 = 7.5x
svlad2 [7]

Answer:

x = 4

Move variables to the right and constants to the left. Then divide.

Step-by-step explanation:

5x + 10 = 7.5x (Given)

-2.5x = -10 (subtraction property of equality)

x = 4 (division property of equality)

6 0
3 years ago
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Write an inequality for each sentence.
Damm [24]

#2: Her earnings were no more than $64. Let e represent her earnings. E is less than or equal to 64 (since it says no more than $64).

e ≤ 64.

#4: A checking account was no more than $500. Let a represent the amount in the checking account. A is less than or equal to 500.

a ≤ 500.

#5: Max. ceiling height of 8 ft is required. Let f represent length in feet. Length in feet has to be less than or equal to 8.

f ≤ 8.

#6: Min. number of 12 participants required. Let n represent the number of participants. There has to be at LEAST 12 participants. So, the number of participants has to be greater than or equal to 12.

n ≥ 12.

5 0
4 years ago
Weather forecasts are based on a weather forecaster's judgment on which one of a number of scenarios is likely to happen. Each s
Nutka1998 [239]

Answer:

2. Weather forecasts are difficult to trust

Step-by-step explanation:

Words like thus are preliminar to a conclusion, that is, we use words like thus when we are going to conclude something.

For Example:

The New Englard Patriots have won 6 Super Bowls. Thus, the New England Patriots are a good NFL franchise.

The conclusion is that the Patriots are a good NFL franchise.

In this problem, we have that:

Thus, it is difficult to trust weather forecasts.

The conclusion is:

2. Weather forecasts are difficult to trust

8 0
3 years ago
What does the expression 75-5 means
amm1812
Seventy-five minus five
7 0
3 years ago
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3. A serving of a frozen casserole is 1/6 of a pan. If Vicky eats 1/7 of the pan, what fraction of a serving has Vicky eaten? Vi
grigory [225]

Answer:

x=\dfrac{6}{7}

Step-by-step explanation:

A serving of a frozen casserole is 1/6 of a pan.

Vicky is 1/7 of the pan

We need to find the fraction of a serving has Vicky eaten. Let he has eaten x. It means (1/6) of x is equal to (1/7).

ATQ,

\dfrac{1}{6}x=\dfrac{1}{7}\\\\x=\dfrac{6}{7}

So, he has eaten (6/7) of a serving Vicky eaten.

8 0
3 years ago
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