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3 years ago

What percent of 45 is 7? show work please?

Mathematics

2 answers:

pishuonlain [190]3 years ago

5 0

Answer:

3.15 is correct

Step-by-step explanation:

The person above me has all the work needed

Otrada [13]3 years ago

3 0

Answer:

3.15

Step-by-step explanation:

45% can be converted into 0.45 or 9/20. You either multiply 7 by 0.45 or 9/20 to get your answer.

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Solve for y. x + y + z = 4 4x - y - z = 1 x + z = 2

UNO [17]

Answer:

y=2

Step-by-step explanation:

note: it only says to figure out y

x+y+z=4

x+z+y=4

2+y=4 (since x+z=2)

y=4-2

y=2

3 0

3 years ago

Convert the decimal into a reduce fraction.

Ivanshal [37]

Answer:

hey i dont really know, but look up calculator soup, it has a ton of different calculators and may be able to help u

Step-by-step explanation:

7 0

3 years ago

The no. Of adel beads to that of claire's beads was the ratio 7 :4 .When adel gave 68 beads to claire the ratio become 25 :41 .

Novosadov [1.4K]

Answer:

37 beads

Step-by-step explanation:

Given that:

Adel : Claire = 7 : 4

Let Adel be = A; &

Let Claire be = C

A: C = 7 : 4

$\dfrac{A}{C} =\dfrac{7}{4}$

7C = 4A

$C = \dfrac{4A}{7}$ --- (1)

When Adel gave 68 beads to claire, we have:

C + 68 = 25:41

$\dfrac{A}{C+68}= \dfrac{25}{41}$

25(C + 68) = 41A

C + 68 = $\dfrac{41}{25}A$

$C = \dfrac{41}{25}A - 68$ --- (2)

Equating (1) and (2) together;

$\dfrac{4 * A}{7} = \dfrac{41 *A}{25} - 68$

$\dfrac{4 * A}{7}-\dfrac{41 *A}{25} = - 68$

$\dfrac{100A - 287 A}{175} =- 68$

$\dfrac{-187A}{175} = -68$

- 187 A = 175 × (-68)

-187 A = - 11900

A = - 11900/ -187

A ≅ 64

From; $C = \dfrac{4A}{7}$

$C = \dfrac{4*64}{7}$

C = 36.57

C ≅ 37 beads

4 0

3 years ago

Simplified Quickly please

UkoKoshka [18]

Answer:

3a:20d+35

3b:35u+49q+56

4a:15+20t

4b:96k+120t+84

5a:24t+108m+60

5b:56q+28b+35

6a:14q+10w+24

6b:54v+99+27t

7a:16g+24+24c

7b:30a+55+50d

(i think thats what they are but the picture is small so its kind of hard to see)

Step-by-step explanation:

(since theres 10 total ill just give an example on how i solved 5a)

5(4d+7)

simplify into: (5•4d)+(5•7)

multiply: (20d)+(35)

since you do not know what d is, you cannot add them

remove parentheses once done:20d+35

(you don't need parentheses since multiplication come before addition but its easier to just use them)

<h2>Hope this helps</h2>

4 0

3 years ago

Fracciones equivalente 1/4

stealth61 [152]

2/4 esa es una ojalá y pude contestar a tiempo

6 0

3 years ago