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Dmitrij [34]
4 years ago
15

1. Evaluate 7m + 3mn; when m=8 and n=14?

Mathematics
1 answer:
FrozenT [24]4 years ago
3 0

Answer:

1. 392

2. 75

3. 12x^{2} - 5x -2

Step-by-step explanation:

1. 7×8 + 3×8×14 = 56 + 336 = 392

2. 675 ÷ (6 + 3) = 675 ÷ 9 = 75

3. 12x^{2} + 3x - 8x - 2 = 12x^{2} -5x-2

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Please read the question below.
Paha777 [63]

Answer:

B

Step-by-step explanation:

3\4 for 4

X For 6

6(3\4)=4x

18\4 =4x

18\16 =x

9\8 =x

8 0
3 years ago
Read 2 more answers
Joannie lent $200 to her sister. Four years later, her sister repaid her in full with $228. What simple annual interest rate did
vodomira [7]

Ok, so lets convert all the percents into decimals to help us solve this problem

A 3.0%= 0.03

B 3.5%= 0.035

C 4.0%= 0.04

D 4.5%= 0.045

Now, we can multiply $200 by all the decimals we just converted to see which one will add up to $208

200*0.03= 6-------200+6=206 (this is not equal to 208 so it's not A)

200*0.035=7--------200+7= 207 (Still does not equal 208, so it's not B)

200*0.04= 8---------200+8=208 C is your answer

7 0
3 years ago
On Tuesday and Wednesday, cab fare cost $7.75 total. On Monday and Thursday, cab fare cost $6.30 on each day. On Friday, cab far
kap26 [50]
Add all the numbers up but pay attention you are counting 6.30 twice. then you divide by the numbers of days you have.(5) 
<span>Your answer should be 5.47</span>
7 0
3 years ago
An angle measures 16° less than the measure of a complementary angle. what is the measure of each angle?
Flauer [41]
= 90°/2
= 45°

x = 45° - 16°
x = 29°

y = 45° + 16°
y = 61°

61° and 29° i guess.
3 0
4 years ago
Read 2 more answers
A student from the community college is selected at random. Find the probability that the student is between 26 and 35 inclusive
Ksivusya [100]

The question is incomplete! The complete question along with answers and explanation is provided below!

Question:

The age distribution of students at a community college is given below:

Number of students under 21: 416

Number of students 21-25: 402

Number of students 26-30: 210

Number of students 31-35: 55

Number of students over 35: 24

Total number of students: 1107

A student from the community college is selected at random. Find the probability that the student is between 26 and 35 inclusive. Round approximations to three decimal places.

Answer:

Probability of age 26-35 = 0.239 or 23.9 %

Step-by-step explanation:

The no. of students in the age 26-35 = no. of students of age 26-30  + no. of students of age 31-35

The no. of students in the age 26-35 = 210 + 55

The no. of students in the age 26-35 = 265

Total no. of students: 1107

Probability of age 26-35 =  The no. of students in the age 26-35/ Total no. of students

Probability of age 26-35 = 265/1107

Probability of age 26-35 = 0.239

Probability of age 26-35 = 23.9 %

7 0
3 years ago
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