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miv72 [106K]
3 years ago
5

Mrs aleaze tells her stuents there will be 50 questions on their test and 20 percent of them will be word problems how much prob

lems are on the test
sience 20% of 50 is equal to _ there will be_ word problems
Mathematics
1 answer:
timofeeve [1]3 years ago
6 0
The word problem only gives you two numbers, so it would be easy to assume that the questions involves those two numbers. However, in this case, the question requires that you calculate another answer first: the number of questions Abel got right. You'll need to subtract 4 from 80, then calculate the percentage of the difference:

80-4=78, and 78/80*100=97.5 percent So it will be 50
You might be interested in
The lizards in the show eats about 200 crickets per week.About how many crickets do they eat each day.
bogdanovich [222]

Since there are 7 days in a week, you divide 200 and 7 to get 28.57.

You must also round to the nearest integer, so the lizards in the shows eat about 29 crickets each day.


3 0
3 years ago
Help please . number 2 .
givi [52]

Answer:

D

Step-by-step explanation:

10x² - 25x + 15 = 0

Divide by 5 both sides,

2x² - 5x + 3 = 0

(x - 1) (2x - 3) = 0

Factors: x - 1 and 2x - 3

Answer: D

4 0
2 years ago
A salesperson works 40 hours per week at a job where she has two options for being paid. Option A is an hourly wage of $26. Opti
trasher [3.6K]

Step-by-step explanation:

12,500.

Step-by-step explanation:

We have been given that a salesperson works 40 hours per week at a job where he has two options for being paid. Option A is an hourly wage of $25. Option B is a commission rate of 8% on weekly sales.

First of all we will find amount earned by salesperson with option A.

\text{Option A earnings}=40\times 25=1000Option A earnings=40×25=1000

The salespersons earns $1000 through option A.

Let x be the amount of weekly sales.

8% of x should be equal to 1000 for salesman to earn the same amount with the two options.

\frac{8}{100}x=1000

100

8

x=1000

0.08 x=10000.08x=1000

x=\frac{1000}{0.08}x=

0.08

1000

x=12500x=12500

Therefore, the salesman needs to make a weekly sales of $12,500 to earn the same amount with two options.

3 0
3 years ago
Read 2 more answers
HELP ASAP ( GENUISES,ACE, EXPERTS)
EleoNora [17]

Answer:

<MAL = 125

Step-by-step explanation:

The angle formed by two chords = 1/2(sum of intercepted arcs)

<MAL = 1/2 ( 170+80)

<MAL = 1/2(250)

<MAL = 125

6 0
4 years ago
Read 2 more answers
Jackie invests $1,000 in an account that earns 5% simple interest. Amber invests $800 in an account earning 8% interest compound
Aneli [31]
The equation for simple interest is : Growth) y = a(1+r)^x decay) y = a(1-r)^x

the equation for compound interest is always : B = P(1+r/n)^nt yes i know its kinda complicated but you'll get used to it.

NOTE: P is the amount you start with [for jackie its 1000 and for amber its 800] and r is the percent you get but in decimal form so if its 5% you would put 0.05 for the r. n is how many times a year (so if its annually its once a year if its quarter annually than its 4 times a year etc.). And x is always for how long (in this instance x would be 3 years)

So now we just plug in all these numbers in:

Jackie: 1000(1+0.05)^3 and just solve that equation. I'll do it for you :)
1000(1.05)^3 

1.05^3= <span>1.157625

1000(</span><span>1.157625) = 1157.625 (since we are talking about money we round to the nearest hundreth)        $1,157.63




Amber: this is the hard one... plug the #'s in

800(1+0.08/1)^1x3
800(1.08)^3
1.08^3 = </span><span>1.259712

800(</span>1.259712) = <span>1007.7696 (remember... money rounds to hundreth) $1007.77

So final answer... jackie makes more more money... $149.86 more

Hope this helped good luck in the future!</span>
4 0
4 years ago
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