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svetoff [14.1K]
3 years ago
12

SAT Help

Mathematics
2 answers:
KonstantinChe [14]3 years ago
7 0

Answer:

In 7*5 = 35 days, Jack can paint 7 houses.

In 5*7 = 35 days, Richard can paint 5 houses.

So in 35 days, the two of them can paint 12 houses. To paint just one house, they'll need 1/12 the time, or 35/12 = 2 11/12 days.

Step-by-step explanation:

posledela3 years ago
5 0
Well, their speeds are (V_1 is Jack's speed, and V_2 is Richard's.
V_1 = \frac{1}{5} houses/day \\ V_2 = \frac{1}{7} houses/day \\ V = V_1 + V_2 = \frac{1}{5}+\frac{1}{7} = \frac{7+5}{35} = \frac{12}{35}
They, together, can paint 12 houses in 35 days. To get a single house, we only have to calculate \frac{35}{12} which is very close to 3 (a bit below)
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Workers Inc. just bought 14 boxes of pens to put in their storage room for employees to use as needed. Each box contains 45 pens
Igoryamba
14x45=630
43×2=86
(14×45)-(43×2)= 630-86=544
there would be 544 pens left
3 0
3 years ago
A closet is 2 feet deep , 5 feet wide , and 7 feet tall what is the valume of the closet in cubic feet , rounded to the nearest
slavikrds [6]

Answer:

70 ft

Step-by-step explanation:

2x5x7=70

5 0
3 years ago
Pls Help Psl help brainliest
kumpel [21]
X=31, the other post justifies, I just wanted to make it more accessible for if someone just needs the answer :)
7 0
2 years ago
Read 2 more answers
17. Your goal is to save at least $360.00 over the next 6 weeks. How much money must you save each week in order to meet that go
OLga [1]
<h2>Answer </h2>

D. 6x>_360; x>_60

<h2>Explanation</h2>

Let x be amount you will save each weeks

Since we know that you are saving over a period of 6 weeks, you will save 6x.

We also now that your goal is to save at least $360.00 over the period of 6 weeks, so saving more than $360.00 will be very desirable, but the goal is to save $360.00. We can rephrase this as: You need to save $360.00 or more; we can say the same using the inequality symbol \geq (greater on equal than)

Now we can combine our tow parts using the inequality symbol:

6x\geq 360

To simplify divide both sides by 6:

\frac{6}{6} x\geq \frac{360}{6}

x\geq 60

You need to save at least $60 per week, so the correct answer is D. 6x>_360; x>_60



4 0
3 years ago
Mr. kelly uses an expression to represent the perimeter of a square, rewrite the expression to represent the length of a side of
sukhopar [10]

Answer:

therefore the side of the square is 2x + 5.

Step-by-step explanation:

i) let the side of the square be a

ii) therefore the perimeter of the square = 4a

iii) therefore 4a = 8x + 20

iv) therefore a  = 2x + 5

therefore the side of the square is 2x + 5.

5 0
3 years ago
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