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3 years ago

Algebra need help ASAP !!!

Mathematics

1 answer:

kirza4 [7]3 years ago

7 0

The top one on the left is equivalent to the second one down on the right; the second one down on the left is equivalent to the bottom one on the right; the third one down on the left is equivalent to the second one down on the right, and the last one on the left is the only one remaining on the right.

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See pictures attached below. Will give Brainliest!

Phoenix [80]

Question 1 Answer:

Aunt 1 and Grandma 1 would fill gift bags.

Mom and Aunt 2 would make centerpieces.

You and Grandma 2 would blow up balloons.

Since you are pairing up to complete the tasks, these pairs each have the shortest times in their respective categories and therefore are the most logical pairing to complete tasks.

Question 2 Answer:

We use algebra and our previous pairings to determine the length of each task.

Gifts Bags --> 6/7 hours

x = time together

$\frac{1}{x}$ = rate of completion

Aunt 1 = $\frac{1}{1.5}$ Grandma 1 = $\frac{1}{2}$

$\frac{2}{3} +\frac{1}{2} = \frac{1}{x}$

$\frac{7}{6} = \frac{1}{x}$

$x = \frac{6}{7}$

Centerpieces --> 7/4 hours

x = time together $\frac{1}{x}$ = rate of completion

Mom = $\frac{1}{3.5}$ Aunt 2 = $\frac{1}{3.5}$

$\frac{2}{7} + \frac{2}{7} = \frac{1}{x}$

$\frac{4}{7} = \frac{1}{x}$

$x = \frac{7}{4}$

Balloons --> 15/16 hours

x = time together $\frac{1}{x}$ = rate of completion

You = $\frac{1}{1.5}$ Grandma 2 = $\frac{1}{2.5}$

$\frac{2}{3} + \frac{2}{5} = \frac{1}{x}$

$\frac{16}{15} = \frac{1}{x}$

$x = \frac{15}{16}$

Shortest amount of time to complete all tasks is:

$\frac{6}{7} + \frac{7}{4} + \frac{15}{16} = \frac{397}{112}$ ≈ 3.54 hours

Converting hours to hours and minutes --> 3 hours 32 minutes

Therefore they must arrive by 5:28pm to complete the tasks in time to leave at 9:00pm.

8 0

3 years ago

Use Pythagorean theorem to find right triangle side le

posledela

The answer should be 10 but it is not in the choices

3 0

3 years ago

Read 2 more answers

Write an inequality to represent: One-fourth of r subtracted from ten is greater than five

makvit [3.9K]

One-forth of r can be written as,

r/4.

Now, r/4 is subtracted from 10 and this is greater than 5.
Therefore, inequality is,

10 - r/4 > 5

6 0

4 years ago

Solve the equation using the method of completing the square 2x squared + 16 x - 8 0

Norma-Jean [14]

Answer:

-4 + 2*sqrt(5)

Step-by-step explanation:

2x^2+16x-8=0

Factor out the 2: 2(x^2+8x)-8=0

Add (b/2)^2 = (8/2)^2 = 16

2(x^2+8x+16)-8 = 0 + 2*16

2(x+4)^2=40

(x+4)^2=20

x+4=+sqrt(20)

x=-4+sqrt(20) = -4 + 2*sqrt(5)

4 0

4 years ago

14. Yang owed two credit cards with balances of $7,500 and $3,500. The card with the $3,500 balance charged 1.4% more than the o

NeTakaya

The simple interest on the balance of $3,500 is 8.88%

The simple interest on the balance of $7,500 is 7.48%

What is simple interest?

The simple interest on a credit card is the annual interest multiplied by the credit card balance, in other words, the total interest paid on both credit cards in the year under review summed up to $797.

Let us assume that simple interest on the credit card with a balance of $7500 is X

interest=$7500*X

The interest on the other credit card would be X+1.4%

interest in dollars=$3500*(X+1.4%)

total interest cost in dollars on both cards can be determined as the sum of the interest costs

total interest=$7500*X+$3500*(X+1.4%)

total interest=7500X+3500X+49

total interest=797

797=7500X+3500X+49

797=10000X+49

797-49=10000X

748=10000X

X=748/10000

X=7.48%

The simple interest on the credit balance of $7500 is 7.48%

The simple interest on the credit balance of $3,500=7.48%+1.4%

The simple interest on the credit balance of $3,500=8.88%

Find out more about simple interest on:brainly.com/question/1115815

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4 0

2 years ago