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qwelly [4]
3 years ago
9

Mrs. Carroll purchases new materials for her math classroom. New workbooks cost $7.00 each, and new dry erase boards cost $5.00

each. She had a budget of $50.00. Write an inequality to represent the situation. Let w represent the number of workbooks and let d represent the number of dry erase boards.
Mathematics
1 answer:
xeze [42]3 years ago
3 0

Answer:

7w+5d\leq 50

Step-by-step explanation

Let w represent  the number  of workbooks

Let d represent the number of dry erase boards

Then , we can create the inequality for this situation

7w+5d\leq 50

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A cafeteria manager needs to know how many apples and bananas to to order. He asked students to choose either an apple or a bana
shusha [124]

Answer:

36

Step-by-step explanation:

The answer is easy to find if we use the cross-multiplication method.

We know 7 students out of 10 picked apples, then 3 out of 10 picked bananas.

We know the number of people who picked apples.

\frac{apples}{bananas} = \frac{7}{3} = \frac{84}{x}

We just have to isolate x, this way and solve the problem:

\frac{7}{3} = \frac{84}{x}

becomes

x = \frac{84 * 3}{7} = \frac{252}{7} = 36

So, 36 students picked bananas as their favorite fruit.

5 0
3 years ago
Ill give u brainliest plss help!!!
Katarina [22]

Let X = the number of months.

You need to multiply $70 by the number of months (x) which is written as 70x. You then need to add that to the initial deposit of $450.

The equation is:

Total = 70x + 450

7 0
3 years ago
You read 16 pages of Harry Potter in 20 minutes. At this rate, how many pages can you read in 45 minutes​
xxMikexx [17]

Answer:

720

Step-by-step explanation:

you would do 16 times 45

4 0
3 years ago
Read 2 more answers
How to say 133,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000?
scoundrel [369]

one hundred thirty three quindecillion

5 0
3 years ago
Would someone mind answering this for me? Thank you
Naddik [55]

(a) m = \frac{1}{2}

calculate the slope (m) using the ' gradient formula '

m = \frac{(y_{2 - y_{1)} } }{(x_{2 - x _{1)} } }

let (x₁, y₁) = (8, 9) and (x₂, y₂) = ( - 2, 4)

m = \frac{(4 - 9)}{(-2 - 8)} = \frac{-5}{-10} = \frac{1}{2}

(b) y - 9 = \frac{1}{2} (x - 8)

the equation of a line in ' point- slope form ' is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

choose any of the 2 given points for (a, b) → (8, 9)

y - 9 = \frac{1}{2} (x - 8) → " point- slope form"

(c) y = \frac{1}{2} x + 5

the equation of a line in ' slope-intercept form ' is

y = mc + c

where m is the slope and c the y-intercept

expand and simplify the point- slope equation

y - 9 = \frac{1}{2} x - 4

y = \frac{1}{2} x - 4 + 9

y = \frac{1}{2} x + 5 → " slope- intercept form"




6 0
3 years ago
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