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3 years ago

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1) In Grade 7-Silang there are 60 students, 25 students like Math class and 47 students like English class. Find the number of s

tudents who both like Math and English class.

2 answers:

a_sh-v [17]3 years ago

8 0

Answer:

12 students both like Math and English

Step-by-step explanation:

47+25= 72

72- 60 = 12

Tatiana [17]3 years ago

3 0

Answer:

12 students like both subject.

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Determine whether the graph represents a proportional relationship.

Alexus [3.1K]

Answer:

No, it is not a proportional relationship because the graph does not go through the origin

Step-by-step explanation:

it has to go through zero as in the (origin)

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3 years ago

HELP With this question

ahrayia [7]

Answer:

Step-by-step explanation:

sin 60=CB/18

$\frac{\sqrt{3} }{2} =\frac{CB}{18} \\CB=9\sqrt{3}$

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3 years ago

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artcher [175]

Answer: BC = 5.83

Step-by-step explanation:

Luckily, the triangle is placed on the graph nicely so we can count the legs of the triangle:

AB = 5

AC = 3

BC = ?

To find BC, we can simply use the Pythagorean Theorem:

$a^{2}+b^{2}=c^{2}$

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3 years ago

1. A retirement account is opened with an initial deposit of $8,500 and earns 8.12% interest compounded monthly. What will the a

Rudik [331]

Answer:

Part A) $\$42,888.48$

Part B) $A=\$22,304$

Part C) The graph in the attached figure

Step-by-step explanation:

Part A) What will the account be worth in 20 years?

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=20\ years\\ P=\$8,500\\ r=0.0812\\n=12$

substitute in the formula above

$A=8,500(1+\frac{0.0812}{12})^{12*20}$

$A=8,500(1.0068)^{240}$

$A=\$42,888.48$

Part B) What if the deposit were compounded monthly with simple interest?

we know that

The simple interest formula is equal to

$A=P(1+rt)$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=20\ years\\ P=\$8,500\\r=0.0812$

substitute in the formula above

$A=8,500(1+0.0812*20)$

$A=\$22,304$

Part C) Could you see the situation in a graph? From what point one is better than the other?

Convert the equations in function notation

$A(t)=8,500(1.0068)^{12t}$ ------> equation A

$A(t)=8,500(1+0.0812t)$ -----> equation B

using a graphing tool

see the attached figure

Observing the graph, from the second year approximately the monthly compound interest is better than the simple interest.

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3 years ago

You buy a bunch of snacks from the grocery story that cost $9.50. You also have a 10% off your total purchase coupon. The tax ra

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Answer:

889 or 900

Step-by-step explanation:

I found 4 percent of 9.50 and added it, then found 10 percent and added it.

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