What does 30 ≤ x + 10 ≤ 80 simplify to

Mathematics

1 answer:

MakcuM [25]4 years ago

4 0

Answer:

20 ≤ x ≤ 70

Step-by-step explanation:

Given that:

30 ≤ x + 10 ≤ 80

By solving the left half inequality first:

30 ≤ x + 10

Subtracting 10 from both sides:

30 - 10 ≤ x + 10 -10

20 ≤ x

Now solving inequality of right half:

x + 10 ≤ 80

Subtracting 10 from both sides:

x + 10 -10 ≤ 80 - 10

x ≤ 70

So after simplification we get:

20 ≤ x ≤ 70

I hope it will help you!

You might be interested in

Which is equivalent to 4 (9) 1/2 ^x O 9^2x O 9 1/8 ^x O (9)^x O 6(9) ^x

fgiga [73]

Answer:

36/2^x

Step-by-step explanation:

= 4 X 9 x 1/2^x

= 36/2^x

8 0

3 years ago

Trisha needs 41/2 yards of fabric to do a project. If she already has2/3 of a yard of fabric, what is the minimum amount of fabr

RUDIKE [14]

We know that
4 1/2----------> (4*2+1)/2--------> 9/2
(2/3)*(9/2)------> 18/6--------->3 yd (this is what Trisha has )
if she has (2/3) she only needs (1/3)

[the minimum amount of fabric she must buy]=(9/2)*(1/3)=1.5 yd

the answer is
the minimum amount of fabric she must buy is 1.5 yd

8 0

3 years ago

PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER

LUCKY_DIMON [66]

Answer: d

Step-by-step explanation: when you bring 3 into the square root, it becomes isqrt(63). when you apply i, it makes the number sqrt(-63)

pretty sure I did it right this time

7 0

3 years ago

Read 2 more answers

A group of adult males has foot lengths with a mean of 26.88 cm and a standard deviation of 1.13 cm. Use the range rule of thumb

kompoz [17]

Answer:

The adult male foot length of 24.3 cm is significantly low.

Step-by-step explanation:

We have been given that a group of adult males has foot lengths with a mean of 26.88 cm and a standard deviation of 1.13 cm. We are asked to find the range rule of thumb to determine whether he adult male foot length of 24.3 cm significantly low or significantly high.

The range rule of thumb states that usual values in a normal standard deviation lies within 2 standard deviation from mean that is $\mu-2\sigma$ , where $\mu=\text{ Mean and }\sigma=\text{Standard deviation}$ .