Ask question

Ask question

All categories

kakasveta [241]

2 years ago

7

When measuring distance 12 beads are approximately equat to 6 erasers. how many erasers are equal to 18 beads? How many beads ar

e equal to 42 erasers?

1 answer:

hammer [34]2 years ago

5 0

Answer:

9 and 42

Step-by-step explanation:

12b = 6e ➡ 2b = 1e (b : beads, e : eraser)

we can conclude from the equation we created that the ratio of bead to eraser is 1/2

therefore 18b = 9e

and

42 × 2 =84

84b = 42e

You might be interested in

Callie surveyed 40 students at her school to see how many have dogs and/or cats. She found that 40% of students who have dogs, d

Temka [501]

I don't think you finished the question.

3 0

2 years ago

Read 2 more answers

Maya's unpaid balance is $205.16. Her apr is 14.4% and she has $82.10 in new transactions what a her new balance?

Mila [183]

Answer:

New balance = $316.8

Step-by-step explanation:

Given : Maya's unpaid balance is $205.16. Her APR is 14.4% and she has $82.10 in new transactions.

To find : What is her new balance?

Solution : First we find out the finance charge

Unpaid balance = $205.16

Finance rate = 14.4%

Finance charge = Unpaid balance × finance rate

$=205.16\times \frac{14.4}{100}=29.54$

Finance charge = $29.54

New purchase = $82.10

New balance = Unpaid balance + finance charge + new purchase

New balance = $205.16 + $29.54 + $82.10

New balance = $316.8

7 0

2 years ago

Read 2 more answers

Gillian bought some bund and cakes for $15.25. A bun and a cake cost $2 altogether and each cake cost $1.25. She bought one more

laila [671]

Buns cost .75 so 7 buns. If you need an equation 2x + 1.25= 15.25

8 0

2 years ago

Deana gave her younger sister $5.48 to buy some candy. Her sister returned $2.84 in change. How much did her sister spend on can

alexandr402 [8]

Answer:

$2.64

Step-by-step explanation:Get rid of the dollar sign and just subtract like normal.

5.48

- 2.84

= 2.64

5 0

2 years ago

Which shows the correct substitution of the values a, b, and c from the equation 0 = – 3x2 – 2x + 6 into the quadratic formula?

Stella [2.4K]

Answer:

x = StartFraction negative (negative 2) plus or minus StartRoot (negative 2) squared minus 4 (negative 3)(6) EndRoot Over 2(negative 3) EndFraction

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$0=-3x^{2}-2x+6$

so

$a=-3\\b=-2\\c=6$

substitute in the formula

$x=\frac{-(-2)(+/-)\sqrt{-2^{2}-4(-3)(6)}} {2(-3)}$

therefore

x = StartFraction negative (negative 2) plus or minus StartRoot (negative 2) squared minus 4 (negative 3)(6) EndRoot Over 2(negative 3) EndFraction

4 0

2 years ago

Read 2 more answers