Translate the sentence into an inequality.

Mathematics

1 answer:

Kruka [31]3 years ago

6 0

2b + 21 < 22

b is the unknown number so multiply it by 2 to get 2b then add 21, bring the less than sign and write the 22 after the less than sign

You might be interested in

I need help i suck at math

Vesna [10]

Answer:

12.56

Step-by-step explanation:

The formula of a circle's circumfernce is C = d pi

so we know that r = 2 and d = 2r

d then = 2 * 2 = 4

4 * pi (taking 3.14) = 12.56

therefore circumfernce = 12.56

6 0

3 years ago

Could you send me a picture of the working and the answer

Allisa [31]

---------------------------------
Josie
---------------------------------
3 hours = 26.25

---------------------------------
Find wages for 1 hour :
---------------------------------
1 hour = 26.25 ÷ 3 = 8.75

---------------------------------
Find wages for 8 hours :
---------------------------------
8 hours = 8.75 x 8 = $70

---------------------------------
Find wages for a week :
---------------------------------
$70 x 7 = $350

---------------------------------
Salvador
---------------------------------
2 hours = $15

---------------------------------
Find 1 hour :
---------------------------------
1 hour = $15 ÷ 2 = $7.50

---------------------------------
Find 8 hours :
---------------------------------
8 hours = $7.50 x 8 = $60

---------------------------------
Find 1 week :
---------------------------------
1 week = $60 x 5 = $300

---------------------------------
Define x :
---------------------------------
Let x be the number of weeks needed

---------------------------------
Construct equation :
---------------------------------
350x = 300x + 1000

---------------------------------
Solve for x :
---------------------------------
350x = 300x + 1000

---------------------------------
Take away 300x from both sides :
---------------------------------
50x = 1000

---------------------------------
Divide by 50 :
---------------------------------
x = 20

------------------------------------------------------------------
Answer: It will take 20 weeks.
------------------------------------------------------------------

8 0

4 years ago

5v-4/10=4/5 How do i solve for the variable v

pashok25 [27]

5v - $\frac{4}{10}$ = $\frac{4}{5}$ Multiply both sides by 10
50v - 4 = $\frac{40}{5}$ Divide the fraction
50v - 4 = 8 Add 4 to both sides
50v = 12 Divide both sides by 50
v = $\frac{12}{50}$ SImplify the fraction
v = $\frac{6}{25}$