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Black_prince [1.1K]
3 years ago
5

Help help help please

Mathematics
2 answers:
Gelneren [198K]3 years ago
7 0

Answer:

28

Step-by-step explanation:

first substract 49-21 which will give u 28.

then use this 28 for the other trapezium

add up 24 and 28 together which give 52. then substract 52 from 24 which will give u the answer 28. so therefore 28 is the answer.

hope u understood

Karolina [17]3 years ago
4 0

Answer:

343 meters.

Step-by-step explanation:

Since, both the shapes are similar, their sides are also similar.

21 / 24 = 49 / w

1 / 7 = 49 / w

w = 7 * 49

w = 343

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The actual distance between two cities is 135 km. The map scale is 1cm: 100 km. Find the map distance.
defon

Answer:

1.35cm

Step-by-step explanation:

Given the scale of the map

1cm = 100km

For 135km;

x cm  = 135 km

Divide both equations

1/x = 100/135

100x = 135

x = 135/100

x = 1.35cm

Hence the map distance will be 1.35cm

7 0
3 years ago
Your friend spends 3+4x minutes lifting weights and 9x+5 running a treadmill. Write a polynomial that represents how much time i
rusak2 [61]

Answer:

Polynomial = 5x+ 2

Step-by-step explanation:

Given

Weights = 3 + 4x

Treadmill = 9x + 5

Required

Polynomial that represents time spent running treadmill than weight lifting

To do this, we simply subtract weights from treadmill

i.e.

Polynomial = Treadmill - Weights

Polynomial = 9x + 5 - (3 + 4x)

Polynomial = 9x + 5 - 3 - 4x

Polynomial = 9x - 4x+ 5 - 3

Polynomial = 5x+ 2

6 0
3 years ago
I do not understand this question and it will be kind if you help a kid in need
Nimfa-mama [501]

Answer:

x = \frac{mn(q-p)}{n-m}

Step-by-step explanation:

collect the fractional terms on the left side of the equation and other terms on the right side

subtract \frac{x-n}{n} from both sides

\frac{x-m}{m} - \frac{x-n}{n} + p = q

subtract p from both sides

\frac{x-m}{m} - \frac{x-n}{n} = q - p

We require the fractions to have a common denominator of mn

multiply the numerator/denominator of the first fraction by n and the numerator/denominator of the second fraction by m

\frac{n(x-m)}{mn} - \frac{m(x-n)}{mn} = q - p

distribute and simplify the numerators of the fractions

\frac{nx-nm-mx+mn}{mn} = q - p

\frac{nx-mx}{mn} = q - p

factor out x from each term on the numerator

\frac{x(n-m)}{mn} = q - p

multiply both sides by mn

x(n - m) = mn(q - p)

divide both sides by (n - m)

x = \frac{mn(q-p)}{n-m} → n ≠ m






5 0
4 years ago
-7+x÷14=-1 help I need a lot of help
Anna71 [15]
I hope this helps you

7 0
3 years ago
Read 2 more answers
Mary has 18 beads, and 6 of them are red. the rest are blue. what fraction of the beads are blue?
Finger [1]

Answer:

1/3

Step-by-step explanation:

I believe you would divide 6 by 13

7 0
3 years ago
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