2 years ago

Can someone help me please I’ll give brainly!

Mathematics

1 answer:

sergeinik [125]2 years ago

5 0

Step-by-step explanation:

3, -12,7should be the correct answers

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bearhunter [10]

Answer:

Step-by-step explanation:

x/2=3.5

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3 years ago

Marta hopes to have a test average of at least 90 by the end of the marking period. Her grades on the first four tests have been

Virty [35]

Answer:

Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.

Explanation:

Marks received by Marta in four tests = 86, 84, 97 and 89

Let mark received in fifth test be x

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So we have

$\frac{86+84+97+89+x}{5} \geq 90\\ \\ 86+84+97+89+x\geq 450\\ \\ x\geq 94$

So Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.

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2 years ago

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lutik1710 [3]

$2.08

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3 years ago

The altitude (i.e., height) of a triangle is increasing at a rate of 1.5 cm/minute while the area of the triangle is increasing

Stolb23 [73]

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2 years ago

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Drupady [299]

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