Simplify (-2x - 9)(-4). -8 x + 36 8 x + 36 8 x - 36 -8 x

Jim had some dimes, quarters, and nickels. First, he counted only the dimes and quarters and found that he had 9 coins. Then, he

Olegator [25]

Answer:

$1.90

Step-by-step explanation:

Represent the numbers of nickels, dimes and quarters by n, d and q.

Then: d + q = 9, or q = 9 - d.

Also, n + d = 10

Lastly, n + d + q = 15.

Let's substitute 9 - d for q in the equation immediately above:

n + d + (9 - d) = 15, or n + 9 = 15. Then n must be 6.

In summary, Jim has 6 nickels, (10 - 6) dimes and (9 - 4) quarters, or:

6 nickels, 4 dimes and 5 quarters

Thus, he has 5($0.05) + 4($0.10) + 5($0.25), or

$0.25 + $0.40 + $1.25, or $1.90

7 0

3 years ago

1/6 of 3 yards=______feet I know I just ask one but u get 17 points so plz help I'm stuck

bulgar [2K]

In this question, first we have to see how many feets are in 1 yard .

And there are 3 feets in 1 yard.

So in 3 yards, there are 9 feets

Therefore we will get

$\frac{1}{6}*3 yards= \frac{1}{6} * 9 feet = 1.5 feet$

Therefore the answer of the given question is 1.5 feet.

3 0

3 years ago

Find the square of -1/7

Anastasy [175]

Answer:

1/49

Step-by-step explanation:

To square a number, you multiply it by itself so:

-1/7(-1/7)

negative X negative= postitive

so: -1 x -1 = 1

-7 x -7 = 49

Ans: 1/49

Hope this helps :)

7 0

3 years ago

Solve the inequality and then graph it t-3 < -2

SSSSS [86.1K]

Hi there!

Answer:

t<1

*The answer must have a positive sign.*

Step-by-step explanation:

First, you add by 3 from both sides of an equation.

$t-3+3$

And then, you add/subtract from left too right.

$(-2)+3=-1$

It change negative to positive sign.

Final answer is t<1

Hope this helps!

-Charlie

Have a nice day! :)

:D

7 0

3 years ago

The 3 stages representing the hierarchy of fluency progression including Automaticity, are embedded into which strand of the B.E

Dvinal [7]

The three stages that have to do with fluency, progression and automaticity are found in the Number Sense and Operations .

<h3>What is the number sense and operation strand of mathematics?</h3>

This is the part of mathematics that is known to teach the student basic ways to carry out number operations in mathematics. This has to do with representation of numbers as well as solving for the existing relationships in these numbers.

Having a sense of numbers is a very important ability skill that has to be developed early is students to enable them progress in the subject.

Read more on numbers and operations in mathematics here:

brainly.com/question/295961

#SPJ1

8 0

2 years ago

Simplify (-2x - 9)(-4). -8 x + 36 8 x + 36 8 x - 36 -8 x - 36