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Rina8888 [55]
3 years ago
15

I need the answer to a and b

Mathematics
1 answer:
erica [24]3 years ago
7 0

Answer:

a. x = 7

b. x = 36/5

Step-by-step explanation:

<u>Points to remember</u>

The ratio of of corresponding sides of similar triangles are equal.

<u>a). To find the value of x</u>

From the figure 1 we get two similar triangles, ΔABC and ADE

We can write,

AB/AD = AC/AE

3/6 = x/(x + 7)

3(x + 7) = 6 * x

3x + 21 = 6x

6x - 3x = 21

3x = 21

x = 21/3 = 7

<u>b). To find the value of x</u>

From the figure b we get

ΔABC ~  ΔEDF

AB/DE = BC/DF

4/5 = x/9

x = (4 * 9)/5 = 36/5

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Flauer [41]

Let h = the number of hours Marta works

Her savings in her account can be calculated by:

840 + 15h

This needs to be at least $2650 for her trip, so an inequality to solve:

840 + 15h ≥ 2650,  where h is the number of hours worked

Now solve:

15h ≥ 1810

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Marta needs to work at least 120\frac{2}{3} hours in order to have enough money for her trip.

8 0
4 years ago
-4w+18w+2=10-6w <br><br> What is w?
kiruha [24]

Answer:

w = .5

Step-by-step explanation:

-4w + 18w+2=10 -6w

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16w = 8

16w/16 = 8/16

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8 0
3 years ago
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almond37 [142]

Answer:

1

Step-by-step explanation:

m=2

3m²- 2m- 7

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5 0
3 years ago
on the stock exchange, 100 shares of pizzazz corp. stock are selling $425. how many shares can be purchased for $1000?
Natali5045456 [20]

Answer:

235.29 shares can be purchased for $1000.

Step-by-step explanation:

As

  • On the stock exchange, 100 shares of pizzazz corp. stock are selling $425

We have to determine how many shares can be purchased for $1000?

The price of 100 shares = $425

The price of 1 share = 425/100 = $4.25

Now, It is very easy to calculate the number of shares can be purchased for $1000.

All you have to do is to divide by 1000 by 4.25.

i.e.  1000/4.25 = 235.29 shares

Therefore, 235.29 shares can be purchased for $1000.

6 0
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FP!<br> what is 50 + 20
meriva
50+20=70

Have a great day:)
4 0
3 years ago
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