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olga2289 [7]
3 years ago
13

-4(5c+7)-3c+13 simplify, pls include step-by-step thank you <3

Mathematics
2 answers:
podryga [215]3 years ago
7 0

Answer:

-23c - 15

Step-by-step explanation:

-4(5c+7) - 3c + 13

Expand brackets.

-20c - 28 - 3c + 13

Rearrange.

-20c - 3c - 28 + 13

Add or subtract like terms.

-23c - 15

o-na [289]3 years ago
6 0
See the steps below, hope this helps!

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The total sales were $200 more than the manager's prediction. If x represents the manager prediction, write an expression to rep
OverLord2011 [107]

Answer:

y = 200 + x

Step-by-step explanation:

Given

Prediction = x

Sales = \$200\ more

Required

Determine the actual sales

Represent the actual sales with u

y = Sales + Prediction

y = 200 + x

<em>Hence, the total sales can be expressed using y = 200 + x</em>

4 0
3 years ago
Megan creates a scale drawing of a car. The ratio of her scale drawing length to actual car
Alika [10]

Answer:

Givens

  • The length of the car in her drawing is 6 cm.
  • The scale is 3 cm : 2 m.
  • Ivan draws with a relation 2 cm : 1 m.

First, we need to find the actual length of the car using Megan's ratio.

If 2 centimeters is equivalent to 1 actual meter of the car, 6 centimeters of drawing would be equal to

M=6cm \times \frac{2m}{3cm} =4m

Therefore, the car is 4 meters long.

Now, using this information, we can find the length of the scale drawing of Ivan.

I=4m \times \frac{2cm}{1m}=8cm

Therefore, Ivan's drawing is 8 centimeters long.

6 0
3 years ago
Read 2 more answers
I NEED HELP PLEASE HURRY Type the correct answer in the box. Use numerals instead of words. If necessary use / for the fraction
mart [117]
(y+1), since 5y2-2y-7=(5y-7)(y+1)
3 0
3 years ago
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Solve for k 5/8(3k+1)-1/4(7k+2)=1
lesya [120]

Answer:

<h2>k = 7</h2>

Step-by-step explanation:

\dfrac{5}{8}(3k+1)-\dfrac{1}{4}(7k+2)=1\qquad\text{multiply both sides by 8}\\\\8\!\!\!\!\diagup^1\cdot\dfrac{5}{8\!\!\!\!\diagup_1}(3k+1)-8\!\!\!\!\diagup^2\cdot\dfrac{1}{4\!\!\!\!\diagup_1}(7k+2)=8\cdot1\\\\5(3k+1)-2(7k+2)=8\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\(5)(3k)+(5)(1)+(-2)(7k)+(-2)(2)=8\\\\15k+5-14k-4=8\qquad\text{combine like terms}\\\\(15k-14k)+(5-4)=8\\\\k+1=8\qquad\text{subtract 1 from both sides}\\\\k=7

3 0
3 years ago
A spinner has 6 equally divided sections labeled A, B, C, D, E and F. After spinning the spinner, a number cube is rolled. What
bagirrra123 [75]

Answer: \dfrac{2}{9}

Step-by-step explanation:

Given

The spinner has 6 equal sections A, B, C, D, E, and F

The two events occurred one after the other. So, the probability is the product of the probabilities of each event.

There are two consonants in the given 6 letter

The probability of landing over a consonant  is

P_1=\dfrac{2}{6}

The number greater than 2 in a cube are 3,4,5,6

So, probability corresponding to it

P_2=\dfrac{4}{6}

So, the required probability is

\Rightarrow P=P_1\times P_2\\\Rightarrow P=\dfrac{2}{6}\times \dfrac{4}{6}\\\\\Rightarrow P=\dfrac{8}{36}\\\\\Rightarrow P=\dfrac{2}{9}

8 0
3 years ago
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