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3 years ago

Best answer will be BRAINLIEST!!!!!!

Mathematics

1 answer:

vekshin13 years ago

3 0

Answer:

252

Step-by-step explanation:

The number of integers from 100 to 999 is 999 - 100 +1 = 900.

Consider the number of three-digit integers that do not contain 4 as a digit.

For the hundreds digit, there are 8 possible choices (excluding 0 and 4).

For the tens digit, there are 9 possible choices (excluding 4).

For the ones digit, there are 9 possible choices (excluding 4)

Thus, there are 8 × 9 × 9 = 648 three-digit integers without a 4.

The number of three-digit integers with at least one 4 is 900 - 648 = 252.

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In June Gemma paid £68 for her electricity.

Volgvan

Answer:
Total amount paid in july: $68 + $3.40 + 71.40
Step-by-step explanation:
given: June= $68 for electricty

5 0

2 years ago

30 points for the correct answer

Dahasolnce [82]

Answer:

its either 2/9 or 2/3

Step-by-step explanation:

I solved the top part and got 2/3 and i solved the bottom part and got 1/3 and you can multiply 2/3 and 1/3 and got 2/9

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3 years ago

What expression is equivalent to (2a - 7) + 5(3 - a)

Colt1911 [192]

Answer:

Step-by-step explanation:

2a-7+15-5a

2a-5a-7+15

-3a+8

7 0

3 years ago

Which of the following statements is needed in order to prove these triangles are congruent by AAS?

creativ13 [48]

Answer:

$RQ\cong UT$

Step-by-step explanation:

Two triangles are congruent by AAS postulate if two adjacent corresponding angles are congruent and the next adjacent sides to any of the angles is are also congruent. The adjacent sides should not be in between the two congruent angles.

From the triangles RQS and UTV

$\angle R\cong \angle U\\\angle S\cong \angle V$

The adjacent side to $\angle R$ is RQ and for $\angle U$ is UT.

Similarly, the adjacent side to $\angle S$ is QS and for $\angle V$ is TV.

So, the possible sides that could be congruent by AAS postulate are:

$RQ\cong UT$ or $QS\cong TV$

So, the correct option is $RQ\cong UT$

5 0

3 years ago

Brine is a solution of salt and water. If a tub contains 50 gallons of a 5% solution of brine, how much water must evaporate to

vova2212 [387]

Let x = amt of water evaporated :.05(50) = .08(50-x) 2.5 = 4 - .08x .08x = 4 - 2.5 .08x = 1.5 x = 18.75 lb of water evaporated : ; Check; amt of salt remains the same, only the percentage is different, right? .05(50) = .08(50-18.75) .05(50) = .08(31.25) 2.5 = 2.5

7 0

3 years ago