3 years ago

What fraction of students scored 70-79 on the math test?

Mathematics

1 answer:

Sever21 [200]3 years ago

3 0

Answer: 3/11

Step-by-step explanation: Took the test

You might be interested in

Translate the sentence into an equation. Two more than the product of a number and 4 is equal to 7.

podryga [215]

let x = the number

4x+2=7

4 0

3 years ago

If I had 24 apples and X blue berries there are 9 times as many blueberries than apples.

Ganezh [65]

Answer: X=216

so, you have 216 blueberries

7 0

3 years ago

Read 2 more answers

Total cost for cookie and lemonade is 1.80. If lemonade costs 1.00 more than the cookie, how much was the lemonade?

Ray Of Light [21]

Answer:

The lemonade costs 1.4.

Step-by-step explanation:

This question is solved using a system of equations.

I am going to say that:

x is the cost of a cookie.

y is the cost of a lemonade.

Total cost for cookie and lemonade is 1.80.

This means that $x + y = 1.8$ .

As we want y, we have that $x = 1.8 - y$

Lemonade costs 1.00 more than the cookie?

This means that:

$y = x + 1$

$y = 1.8 - y + 1$

$2y = 2.8$

$y = \frac{2.8}{2}$

$y = 1.4$

The lemonade costs 1.4.

5 0

2 years ago

9 to the second power multiply by 3 to the 6 power =3 to the ? power

GenaCL600 [577]

Answer:

Step-by-step explanation:

$a^{m}$ × $a^{n}$ = $a^{m+n}$

$(a^{m})^{n}$ = $a^{mn}$

~~~~~~~~~~~~~

$9^{2}$ × $3^{6}$ = (3²)² × $3^{6}$ = $3^{2*2+6}$ = $3^{10}$

7 0

3 years ago

The number of people who use the ATM at night outside your local bank branch can be modeled as a Poisson distribution. On averag

Marina86 [1]

Answer:

0.6988

Step-by-step explanation:

Given that the number of people who use the ATM at night outside your local bank branch can be modeled as a Poisson distribution.

Let X be the number of customers arriving between 10 and 11 am.

X is Poisson with mean= 1.2

Required probability

= the probability that in the hour between 10 and 11 PM at least one customer arrives

= P(X≥1)

=1-P(X=0)

=1-0.3012

= 0.6988

6 0

3 years ago