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3 years ago

Translate the sentence into an equation. The sum of 3 times a number and 7 is 19.

1 answer:

7 0

D. Because you're multiplying 3 by a number which is what the variable represents (n), then you're just adding 7 to that which equals 19 all together. It all translates to 3n+7=19.

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Lauren says that two expressions 3x+4(2x+5) and 6x +5x . do these equal the same

spin [16.1K]

these do not equal the same. 

step by step: 3x + 4 (2x + 5)

multiply 4 by 2x, which is 8, then multiply 4 by 5, which is 20.

simplify; 3x + 8x + 20

combine like terms; (3x + 8x) + (20)

you’ll come up with 11x + 20

step by step: 6x + 5x

just add the two together and... bam, you get 11x.

4 0

4 years ago

In a line of students, Jenna is number 8. The teacher says that a rule for a number pattern is add 4. The first student in line

coldgirl [10]

Jenna should say 35

Hope this helps!

3 0

4 years ago

I have to do this please help mee 1/2x(x-4)(2x-7)(1+x^2)(1-2x)>=0

kenny6666 [7]

Answer:

In the pic

Step-by-step explanation:

7 0

3 years ago

WHAT IS THE EXPANDED FORM FOR 902.604?

murzikaleks [220]

Answer:

(9 × 100) + (2 × 1) + (6 × 0.1) + (4 × 0.001)

Step-by-step explanation:

I am pretty sure

3 0

3 years ago

Read 2 more answers

Sam volunteers at an animal shelter. He created a line plot to show the weights in pounds of the kittens at the shelter.

Anastaziya [24]

Answer:

The total weight is 5kg

Step-by-step explanation:

Given

See attachment for box plot

Required

Determine the total weight of the kitten

First, we represent the plot in the following table where the number of dots represent the frequency.

So, we have:

$Weight \to Frequency$

$\frac{1}{2} \to 3$

$1 \to 2$

$1\frac{1}{2} \to 1$

$2 \to 0$

$2\frac{1}{2} \to 0$

Multiply the weight by the frequency, then add up the result

So, we have:

$Total = \frac{1}{2} * 3 + 1 * 2 + 1\frac{1}{2} * 1 + 2 * 0 + 2\frac{1}{2} * 0$

$Total = 1\frac{1}{2} + 2 + 1\frac{1}{2} + 0 + 0$

$Total = 1\frac{1}{2} + 2 + 1\frac{1}{2}$

Express as improper fraction

$Total = \frac{3}{2} + 2 + \frac{3}{2}$

Take LCM

$Total = \frac{3+4+3}{2}$

$Total = \frac{10}{2}$

$Total = 5kg$

8 0

3 years ago