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ExtremeBDS [4]
2 years ago
14

What is ,- 7 ≤ 2a + 7 ≤ 23

Mathematics
2 answers:
amm18122 years ago
8 0
To solve a compound inequality, separate it into two inequalities-
2a + 7>-7
2a +7<23

Solve the inequality-
a>-7
a<8

Find the intersection-
a ∈[-7,8]
Nezavi [6.7K]2 years ago
7 0

Answer:

−7≤a≤8

Step-by-step explanation:

Here's a quick step by step hope this helps!

You might be interested in
A grocery store sells a bag of 6 oranges for $2.34. If Mav spent $1.95 on oranges, how many did she buy?
poizon [28]

Answer:

5 oranges

Step-by-step explanation:

to solve this problem we need to make a cross-multiplication equation

2.34 is to 6 as 1.95 is to ?

? is the number of oranges that are needed to be found that were bought

2.34/6 = 1.95/?

Now we cross multiply 6 and 1.95 = 11.7

11.7/2.34 = 5

Give brainliest, please!
hope this helps :)

5 0
2 years ago
Read 2 more answers
The volume of a right circular cone is 2,279.64 in cubed. If the height of the cone is 18 in, what is the diameter of the cone?
Aleksandr [31]

ANSWER

A. 22 in

EXPLANATION

The volume of a cone is calculated using the formula:

Volume =  \frac{1}{3}  \times \pi {r}^{2} h

It was given that: the volume is 2,279.64 in³

The height of the cylinder is also given as: h=18 in.

We substitute, the given values into the formula to get:

2279.64=  \frac{1}{3}  \times (3.14) \times {r}^{2}  \times 18

2279.64= 18.84 {r}^{2}

{r}^{2}  =  \frac{2279.64}{18.84}

{r}^{2}  = 121

We take positive square root to get;

r =  \sqrt{121}

r = 11in

Therefore the diameter is 2(11) which is equal to 22 inches.

5 0
3 years ago
Which choice is the solution?
kifflom [539]
The solution for your answer is 12

8 0
3 years ago
43,785 to the nearest ten thousand
castortr0y [4]

Answer:

40,000

Hope it helps .

4 0
3 years ago
Read 2 more answers
-2x + 8 = 18 please help. What does x equal
kakasveta [241]

Answer:

x = -5

Step-by-step explanation:

Step 1: Write equation

-2x + 8 = 18

Step 2: Solve for <em>x</em>

  1. Subtract 8 on both sides: -2x = 10
  2. Divide both sides by -2: x = -5

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

-2(-5) + 8 = 18

10 + 8 = 18

18 = 18

6 0
2 years ago
Read 2 more answers
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