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forsale [732]
3 years ago
11

Tommy’s grandma gave him $20 and he makes 10 each week cutting grass. What is the algebraic expression for this phrase?

Mathematics
1 answer:
FrozenT [24]3 years ago
7 0

Answer:

20 x 10

Step-by-step explanation:

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What is the solution to the inequality 1/4(3x-6) >2(7-x +1
Vladimir79 [104]

Answer:

x>70/11

Step-by-step explanation:

5 0
3 years ago
A large tank is filled to capacity with 400 gallons of pure water. Brine containing 5 pounds of salt per gallon is pumped into t
Thepotemich [5.8K]

Answer:

If  is the amount of salt in the tank at time , then the rate at which the amount of salt in the tank changes is given by

Let's drop the units for now. We have

We're given that the water is pure at the start, so , giving

So the amount of salt in the tank (in lbs) at time  is

Step-by-step explanation:

3 0
3 years ago
The density of Venus, compared to Earth having a density of 1,
guapka [62]

Answer:

Mercury

Step-by-step explanation:

We'll translate this into ratios.

First, V:E = 0.943:1

Then, M:E = 0.983:1

We already have their density in terms earth's density. They are in the same unit. So, we can compare them directly, with greater ratio means greater density. It's clear that Mercury has the greater density.

6 0
4 years ago
The correct answer is y < 18. Let's pretend a student forgot to flip the symbol and they mistakenly believe the solution set
snow_tiger [21]

Answer:

It is wrong

Step-by-step explanation:

y < 18

This is read as y is less than 18. If the students forgot to flip the symbol and mistakenly believe that y > 18.

y > 18

This is read as y is greater than 18.

There is a difference between the numbers greater or less than 18 .

y must have numbers less than 18 and 21 is greater than 18.

Therefore it is wrong.

But to make it true we can multiply minus with the inequality y > 18

-y > -18

This reverses the inequality sign and it becomes

y< 18

The solution which is required.

4 0
3 years ago
N - 20 = 5<img src="https://tex.z-dn.net/?f=n%20-%2020%20%3D%205" id="TexFormula1" title="n - 20 = 5" alt="n - 20 = 5" align="ab
Alenkasestr [34]

Answer:

= 2 5

Step-by-step explanation:

− 2 0 = 5

n-20=5 n−20=5 − 2 0 + 2 0 = 5 + 2 0

8 0
3 years ago
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