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3 years ago

X + 4 + 3x = 72 Yall Know The Deal

Mathematics

1 answer:

Snezhnost [94]3 years ago

3 0

Answer:

x = 17

Step-by-step explanation:

Combine like terms first:

x + 3x + 4 = 72 --> 4x + 4 = 72

Isolate the variable by subtracting 4 from both sides so you get

4x = 72 - 4

4x = 68

Divide both sides by 4 to get

x = 68/4

x = 17

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sasho [114]

Answer:

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Step-by-step explanation:

3 0

3 years ago

A salad bar offers vegetable platters in 4 sizes (small, medium, large, and super-sized) and 6 different vegetables to choose fr

quester [9]

Answer: She could create 60 platters.

Step-by-step explanation:

Given: A salad bar offers vegetable platters in 4 sizes (small, medium, large, and super-sized) and 6 different vegetables to choose from.

Number of combinations of selecting r things from n things is given by:-

$^nC_r=\dfrac{n!}{r!(n-r)!}$

So, the number of combinations of selecting 2 different vegetables from 6 = $^6C_2=\dfrac{6!}{2!4!}=\dfrac{6\times5}{2}=15$

Now, By Fundamental counting principle, the number of different platters she could create = (number of ways of selecting 2 different vegetables from 6) x (Number of sizes)

= 15 x 4

= 60

Hence, she could create 60 platters.

6 0

3 years ago

HELP!!!

vladimir1956 [14]

Create a conversion factor from "There are 6.02 × 10^23 atoms in 1 gram of hydrogen:"

6.02*10^23 atoms
-------------------------
1 gram

Then mult. 800 grams by this conversion factor:

6.02*10^23 atoms 800 grams
------------------------- * ----------------
1 gram 1

This comes out to 4816*10^23 atoms, which, in scientific notation, is

4.816*10^26 atoms.

3 0

3 years ago

Read 2 more answers

I need help on a McGraw hill assignment its due soon pls help.

blagie [28]

Answer:

1850

Step-by-step explanation:

The problem is asking you how many kids (predicted by the superintendent) will buy lunches for 1-2 days. Since you know the percentage predicted and the student amount, just multiply as a decimal (convert by putting the number over 100 as a fraction.)

5000*0.37=1850

4 0

3 years ago

Read 2 more answers

Sketch the graph of the inequality. 9. 7y − 2x + 3 < 17

ohaa [14]

$7y-2x+3 < 17\ \ \ \ |-3\\\\7y-2x < 14\ \ \ \ |+2x\\\\7y < 2x+14\ \ \ \ |:7\\\\y < \dfrac{2}{7}x+2\\\\y=\dfrac{2}{7}x+2\\\\for\ x=0\to y=\dfrac{2}{7}(0)+2=2\to(0,\ 2)\\\\for\ x=-7\to y=\dfrac{2}{7}(-7)+2=0\to(-7,\ 0)$

5 0

3 years ago