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3 years ago

Which value for x makes the sentence true? 1/10 + x = 1/7

Mathematics

1 answer:

alexandr1967 [171]3 years ago

6 0

Answer:

3/70

Step-by-step explanation:

change 1/10 and 1/7 so the denominator (bottom number) is the same. 1/10= 7/70 and 1/7= 10/70 so you need 3/70 to make the two numbers equal.

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Quadrilateral ABCD in the future below represents a scaled-down model of a walkway around a historic site. Quadrilateral EFGH re

marysya [2.9K]

I believe this is the question: "Quadrilateral ABCD in the figure below represents a scaled-down model of a walkway around a historic site. Quadrilateral EFGH represents the actual walkway. ABCD is similar to EFGH. Two irregular similar quadrilaterals ABCD and EFGH are drawn. AB measures 5 inches, BC measures 4 inches, CD measures 4 inches and AD measures 3 inches. EF measures 45 feet. What is the total length, in feet, of the actual walkway?"
We should determine the ratio(proportionality) of the two similar quadrilaterals. Since AB corresponds to EF, AB=5, EF=45, we know that the side lengths of EFGH is 45/5=9 times those of ABCD. The perimeter of ABCD=5+4+4+3=16 feet, so the perimeter of EFGH, the actual pathway, is 16*9=144 feet.

8 0

4 years ago

Read 2 more answers

Please help me with this

Gennadij [26K]

9514 1404 393

Answer:

2/3

Step-by-step explanation:

The value of the function at x=-1 can be found by substituting that value for x and doing the arithmetic.

f(-1) = 1/3(-1)³ -(-1)

f(-1) = -1/3 +1 = 2/3

The relative maximum value is 2/3.

8 0

3 years ago

Subtract 35 times 2 with 360 and show the work please

frozen [14]

Answer:

290

Step-by-step explanation:

36*2=70

360-70=290

8 0

2 years ago

Bella bought 3 bags of popcorn for $8.25 and 2 sodas for $4.40 at the movies last week. Last month, Bella was at the movies with

diamong [38]

Answer:

bags of popcorn = 10%

sodas = 15.78%

overall increase was 12.5%

Step-by-step explanation:

We must calculate the unit price of each product, before and after.

Before:

bags of popcorn = 7.50 / 3 = 2.5

sodas = 3.80 / 2 = 1.9

Then:

bags of popcorn = 8.25 / 3 = 2.75

sodas = 4.40 / 2 = 2.2

Now, we calculate for each:

bags of popcorn = 2.75 / 2.5 = 1.1

which means that the increase was 10%

sodas = 2.2 / 1.9 = 1.1578

Which means that the increase was 15.78%

If we calculate the percentage of total increase it would be:

(2.75 + 2.2) / (2.5 + 1.9) = 1,125

Therefore the overall increase was 12.5%

5 0

4 years ago

45°30' is equal to….

Schach [20]

Answer:

163800"

Step-by-step explanation:

1°=60'

1' =60"

so,

45°30'

=(45°×60×60)"+(30×60)"

=162000"+1800"

=163800"

So,45°30' is equal to 163800".

5 0

3 years ago