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lana [24]
2 years ago
7

Can you explain how to do 7-11 or do them please

Mathematics
1 answer:
lawyer [7]2 years ago
6 0

Answer:

Step-by-step explanation:

A good thing to remember here is that the word "is" generally means "equals" and the word "of" generally means to multiply.  For #7, "15 is" translates to

15 =

"3/8 of" translates to

15 = 3/8 ×

"of what number" is our unknown, so

15 = 3/8x.  Solve it by multiplying both sides by 8/3.

#8.  "Seventy is" is 70 =

"what decimal part" is our unknown x,

"of 200" is ×200, so

70 = 200x.  Solve that by dividing both sides by 200.  Leave it in a decimal since it asks for the decimal part.

#9. "Two-fifths of" is 2/5 ×

"what number" is our unknown x, and

"is 120" is = 120, so

2/5x = 120.  Solve that by multiplying both sides by 5/2.

#10. Read "what is 60% of 180" to get x = .60(180)

#11.  Read "what is 20% of 35" to get x = .20(35)

Multiply both 10 and 11 to get the answers.

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Completa el enunciado siguiente. Luego usa una recta numérica para hallar la suma 4 + (-7).
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Respuesta Es -3 (tried my best I’m only in Spanish two my main language is English)
8 0
2 years ago
This is super hard i needd help
natta225 [31]

Answer:

2587mm^3 approx!

Step-by-step explanation:

first you divide the nut into 6 part(in triangle now, by joining centre to each edge)

let's take one part of the triangular shape then area of that part can be found by using 1/2×base×height

i.e, 1/2×13×15=97.5(mm^2)

now when we consider depth of that traingular part,we will get volume of that part as area×depth

i.e, 97.5×6=585(mm^3)

now volume of all the 6 triangular part is 585×6=3510(in mm^3)

now take circular cavity in consideration, it's volume will be π(7^2)6=923(mm^3) approximately

now reqired volume will be volume of that hexagonal part minus that of circular cavity

=3510-923

=2587mm^3

✌️

5 0
3 years ago
Please help me find x.
aleksklad [387]
Multiply 10 times 5 then divide it by 4

3 0
3 years ago
Read 2 more answers
Question 7 (Essay Worth 5 points)
kogti [31]

Answer:

x = -2

y=-3

(-2,-3)

Step-by-step explanation:

Both equations are equal to y

We can set them equal to each other

y = 3x + 3

y = x − 1

3x+3 = x-1

Subtract x from each side

3x+3 -x = x-1-x

2x+3 = -1

Subtract 3 from each side

2x+3-3 = -1-3

2x = -4

Divide each side by 2

2x/2 = -4/2

x = -2

Now we need to find y

y = x-1

y = -2-1

y = -3

y = x-1

3 0
3 years ago
Read 2 more answers
. HELP DUE IN A FEW MIN ASAP im stupidssssss
adelina 88 [10]

Answer:

B

Step-by-step explanation:

80*17=1360/choice B

5 0
3 years ago
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