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3 years ago

Order the temperatures from greatest to least.

Mathematics

1 answer:

ch4aika [34]3 years ago

4 0

Answer:

-10

-25

-45

Step-by-step explanation:

Do the biggest number. Then count down. When you get to negative number the smallest negative is the biggest number because it is closer to zero.

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Alex scored 98,72, and 87 on his first three math test. What must he score on the next test to have an average of at least 86 (P

ss7ja [257]

Answer:

$\huge\boxed{\text{At least an } 87\%}$

Step-by-step explanation:

In order to find what score Alex must earn to have an average of 86 on all his tests, we need to first note what the formula to find the average of a data set is.

$\displaystyle \frac{x_1+x_2+...x_n}{n}$

What the formula means is that we have to add up all the values then divide by the total number of values.

Let's represent our unknown number as $x$ .

$\displaystyle \frac{98+72+87+x}{4} \geq 86$ (since we want AT LEAST an 86).

Let's solve this inequality for x.

$\frac{98+72+87+x}{4} \cdot 4 \geq 86 \cdot 4$
$98+72+87+x \geq 344$
$257 + x \geq 344$
$257 + x - 257 \geq 344 - 257$
$x \geq 87$

So, Alex must score at least an 87% on his next quiz to have an average of 86%.

Hope this helped!

8 0

3 years ago

Raise r to the 3rd power, then find the difference of the result and s

julsineya [31]

r^3 - s

Finding the difference means subtraction always.

7 0

3 years ago

Each data point represents a single white dwarf supernova that has been observed. the data points that appear farthest to the le

MakcuM [25]

A type Ia supernova is a type of supernova that occurs in binary systems (two stars orbiting one another) in which one of the stars is a white dwarf. The other star can be anything from a giant star to an even smaller white dwarf<span>.

I hope my answer has come to your help. God bless and have a nice day ahead!
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6 0

3 years ago

Li bought five lip balms. Each lip balm costs the same amount. She spent a total of $7.25.

nexus9112 [7]

Answer:

Its 1.45, you didn't have to ask a question just look it up

Step-by-step explanation:

7.25-5c

4 0

3 years ago

Read 2 more answers

How many solutions are there to the equation below?

Pepsi [2]

Answer:

Step-by-step explanation:

This is a linear equation in one variable and has 1 solution

12x + 6 = 5x ( subtract 5x from both sides )

7x + 6 = 0 ( subtract 6 from both sides )

7x = - 6 ( divide both sides by 7 )

x = - $\frac{6}{7}$ ← 1 solution

6 0

4 years ago