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malfutka [58]
3 years ago
13

How can you use the properties of operations to evaluate this expression? 18 + 4(28). Explain.

Mathematics
2 answers:
earnstyle [38]3 years ago
7 0

Use the distributive property and expand 28, then distribute the 4 to 20 and the 4 to 8. Then you have 18 + 80 + 32. Use commutative property to reverse the order of 32 and 80 so that 18 and 32 are friendly numbers to add.

maxonik [38]3 years ago
4 0

Answer:

130.

Step-by-step explanation:

18 + 4(28(

= 18 + 4 * 28   Multiplication is done before addition so we have:

18 + 112

= 130.

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7. Liang is ordering new chairs and cushions for his dining room table.
Furkat [3]

Answer: 100c +34

Step-by-step explanation: I believe you add 88c and 12c together which simplifies the expression to 100c + 34 in total cost.  

7 0
3 years ago
Clothing Online An online clothing company sells custom sweatshirts. The company charges ​$2.99 for shipping plus ​$6.00 for eac
Mumz [18]
50 is the answer to your question glad to help
8 0
3 years ago
Eloise scored a total of 268 points during the basketball season. Of her total points, l points came from left handed shots. She
Naddik [55]

Answer:

\bold{268=225+}l

43

Step-by-step explanation:

Given that:

Total points scored in basketball season, T = 268

Points scored from right handed shots, R = 225

Points scored from left handed shots = l

To find:

To write an equation to describe the situation and find the value of l for left handed shots ?

Solution:

We know that the points can be scored in basketball either by right hand shots or by left hand shots.

In other words, we can say that:

Total points scored in basketball season = points scored from right handed shots + points scored from left handed shots

i.e.

T = R + l\\\Rightarrow \bold{268=225+}l

So, the equation is:

\bold{268=225+}l

Now, let us find the value of l from the above equation:

l=268-225\\\Rightarrow \bold{l = 43}

Number of points scored from left handed shots = <em>43</em>

8 0
3 years ago
Can you guys give me a serious answer please?
grin007 [14]

Answer:

800 bacteria

Step-by-step explanation:

Answer of this question depend upon number of hours at the end of day

Let Take Full Day of 24 hrs

Colby bacteria will doubled 12 times ( doubled once in 2hrs => 24/2 = 12)

Colby bacteria at end of day = 50 * 2¹²

Jaquan bacteria will doubled 8 times ( doubled once in 3hrs => 24/3 = 8)

Let say Jaquan bacteria at start  of Day = J

Jaquan bacteria at end of day = J * 2⁸

Equating Both

J * 2⁸ = 50 * 2¹²

=> J = 50 * 2⁴

=> J = 50 * 16

=> J = 800

Jaquan will start  with 800 Bacteria

4 0
2 years ago
Question 1
Ilia_Sergeevich [38]

We will see that the perimeter of the rectangle is exactly 390 ft, so the statement is true.

<h3>Is the fence enough?</h3>

For a rectangle of length L and width W, the perimeter is given by:

P = 2*(L + W).

In this case, we know that:

L = 120 ft

W = 75 ft

Replacing that on the perimeter equation we get:

P = 2*(120 ft + 75  ft) = 390 ft

So the perimeter is exactly 390 ft, meaning that to put a fence around the parking lot the company will need at least 390 ft of fence.

So the statement is correct.

If you want to learn more about perimeters, you can read:

brainly.com/question/24571594

4 0
2 years ago
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