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Novay_Z [31]
2 years ago
14

Pls answer this for meeee​

Mathematics
1 answer:
Roman55 [17]2 years ago
7 0

Answer:

7 hamsters at 5 pesos each and 13 hamsters at 8 pesos each

Step-by-step explanation:

5x + 8y = 139

x + y = 20

x = 20 - y

5x + 8y = 139

5(20 - y) + 8y = 139

100 - 5y + 8y = 139

100 + 3y = 139

3y = 139 - 100

3y = 39

3y/3 = 39/3

y = 13

x + y = 20

x + 13 = 20

x = 20 - 13

x = 7

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Express 3/5 as a decimal
lana66690 [7]

Answer:0.60

Step-by-step explanation:

Multiply the denominator (5) and the numerator (3) by 20. Both sides multiplied equals 60 as the numerator and 100 as the denominator. After the conversions to a decimal, your answer should be 0.60 since 60/100=0.60.

4 0
2 years ago
From the top of a vertical cliff 40 m high, the angle of depression of an object that is level with the base of the cliff is 34°
Rama09 [41]

Answer:

object is 59.30m away from the base of the cliff

Step-by-step explanation:

yessir

7 0
3 years ago
Could some one plz help me with this question
zhuklara [117]

Answer:

A

Step-by-step explanation:

The formula for this type of interest is A=P(1+\frac{r}{n})^{nt}, where A is the total amount, P is the initial investment, x is the interest rate, n is the amount of times that the investment is compounded a year, and t is the amount of years. Plugging in the numbers given, you get:

A=1800(1+\frac{0.025}{2})^{2\cdot 12}=

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Now, she invests this into a new account, and you can set up the following equation:

A=2425.23(1+\frac{0.04}{12})^{12\cdot 7}=

2425.23(1.0033333)^{84}\approx 3207.40, or option A.

Hope this helps!

3 0
3 years ago
Which algebraic expression represents "the bagels were divided equally into fifteen bags"? 15 + b 157b StartFraction 15 Over b E
maria [59]

Answer: (d)-  \dfrac{b}{15}

Step-by-step explanation:

Suppose 'b' is the number of bagels

It is to be divided into 15 bags

So, we use the divide operator i.e.

\Rightarrow b\ \div\ \15=\dfrac{b}{15}

5 0
3 years ago
Read 2 more answers
HELP PLEASE I WOULD APPRECIATE IF SOMEONE HELPS PLEASE AND THANKS
RideAnS [48]
It's the last one. 15/2 is 7.5.

Therefore you must do the same to the 9. Divide 9 by 7.5 To give you 1.2 and that's your answer.
8 0
3 years ago
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