All categories

3 years ago

Evaluate each expression using the values a=7 and b=4 1) 14+a 2) ab 3) 5b-a

Mathematics

1 answer:

marta [7]3 years ago

8 0

Answer:

1) 21

2) 28

3) 13

Step-by-step explanation:

According to the word problem, a=7 and b=4.

Now, we just plug in the numbers.

14 + 7 = 21

7 ⋅ 4 = 28

5 ⋅ 4 - 7 = 13

ANYTIME YOU SEE TWO VARIABLES (LETTERS) TOGETHER, THAT MEANS MULTIPLY THEM.

AN EXAMPLE OF THIS IS NUMBER 2.

You might be interested in

Please I need help immediately

just olya [345]

Answer:

Step-by-step explanation:

4x+6<= -54

4x <= -60

x <= -15 [The point -15 is included, so it must be a solid dot]

----------------

5x + 7 > -18

5x > -25

x > -5 [The point -5 is NOT included, so it should be an empty dot.]

Solution C seems the best.

4 0

3 years ago

If five notebooks cost $5.25, how much would three notebooks cost? Show your work

nignag [31]

Easy just do )5.25 +$5.25+$5.25 witch equals $15.75 YAY

6 0

3 years ago

Read 2 more answers

Two friends, Parker and David, took summer jobs. The graph below represents David's earnings in dollars and cents, y, for workin

ddd [48]

It doesn’t show a graph

6 0

3 years ago

What is the value of the expression below after it has been simplified completely? (2)(3)-(6)(4) A. –24 B. –18 C. 18 D. 24

AlexFokin [52]

Answer:

Step-by-step explanation:

2x3=6 and 6x4=24 so 6-24= -18

4 0

3 years ago

Simplify by combining like terms 4s + 1/6s + 2 3/5s

HACTEHA [7]

<h3>The solution by combining like terms is 6.7667</h3>

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

$4s + \frac{1}{6}s + 2\frac{3}{5}s$

We have to simplify by combining the like terms

From given,

$4s + \frac{1}{6}s + 2\frac{3}{5}s$

Convert the mixed fraction to improper fraction

$4s + \frac{1}{6}s + \frac{13}{5}s$

Make the denominator same

$\frac{4s \times 30 }{30} + \frac{1s \times 5}{6 \times 5} + \frac{13s \times 6}{5 \times 6}\\\\\frac{120s}{30} + \frac{5s}{30} + \frac{78s}{30}\\\\\frac{203}{30} = 6.7667$

Thus the solution is 6.7667

7 0

3 years ago