help!!!!!!!! i have no clue

Answer:

z=-13/7

Step-by-step explanation:

1. Add 3z(7z+5=-8)

2. Subtract 5(7z=-13)

3. Divide 7(z=-13/7)

Answer:

22π

Step-by-step explanation:

Answer:

There are 9838.5 feet in 3 kilometers.

Step-by-step explanation:

Given that:

There are 1.61 kilometer in a mile.

1 mile = 1.61 km

Also,

1 mile = 5280 feet

Comparing,

1.61 km = 5280 feet

1 km = [tex]\frac{5280}{1.61}[/tex] feet

1 km = 3279.50

3 km = 3279.50 * 3

3 kilometers = 9838.5 feet

Hence,

There are 9838.5 feet in 3 kilometers.

A distance of 3 kilometers is equal to 9,838.5 feet.

Given to us:

1 miles = 1.61 kilometers,

1 miles = 5,280 feet,

from the above to equations we can conclude,

[tex]1\ miles = 1.61\ kilometers = 5,280\ feet\\ 1.6\;kilometers = 5,280\ feet\\\\1\ kilometers =\dfrac{ 5,280\ feet}{1.61} \\\\1\ kilometers = 3,279.5\ feet[/tex]

So, now for 3 kilometers we can conclude that,

[tex]1\ kilometers = 3,279.5\ feet\\3\ kilometers = (3,279.5\times3)\ feet\\3\ kilometers = 9,838.5\ feet[/tex]

Hence, A distance of 3 kilometers is equal to 9,838.5 feet.

To know more visit:

https://brainly.com/question/1844971

Answer:

14%

Step-by-step explanation: Just count the boxes they show you what percent it is

Answer:

the red skittles be 44 and yellow skittles be 17

Step-by-step explanation:

The computation of the number of each color are in the bowl is as follows;

Let us assume the red skittles be y

And, the yellow skittles be x

The first equation is

x + y = 61

And, the second equation is

y = 2x + 10

Now put the second equation in the first equation

x + 2x + 10 = 61

3x = 51

x = 51 ÷ 3

= 17

And, y = 2 (17) + 10

= 34 + 10

= 44

Hence, the red skittles be 44 and yellow skittles be 17

Answer:

and 4 easy

2

Step-by-step explanation:

Answer:

The answer is A. $421.29

Step-by-step explanation:

Just keep finding 19% of the numbers next, and you add that all up and you get the answer.

250 x 19%=47.5. (250+47.5)=> 297.5x19%= 56.525. (297.5+56.525) =>354.025x19%=67.26475

354.025+67.26475=> 421.28975, which can round up to 421.29.

Answer:

easports

Step-by-step explanation:

its in the game

Answer:

50ml

Step-by-step explanation:

5 + 4 = 9

450ml/9 = 50ml

one share is 50ml

Answer:

B, C, D, E

Step-by-step explanation:

Let hours = x

She can work a maximum of 30 hours so x can be any number from 30 or below.

The inequality would be: X <= 30

Answer:

Let the maximum time be x

She can work 30 hrs or below ( maximum of 30 hrs)

Therefore, the equation is

[tex] \huge \boxed{x \leqslant 30 \: hours}[/tex]

Answer:

a.

[tex]h=\dfrac{2A}{b}[/tex]

b.

A = 220 mm²

b = 20 mm

[tex]h=\dfrac{2 \cdot 220}{20}=22 \: {mm}[/tex]

Answer:

A=1/2bh

2*A=1/2bh*2

2A/b=bh/b

h=2A/b

b)h=2(220)/20

height=22mm

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Let me know if I was right :( don't be mean pls

Answer:

If you're multiplying them: 34x * 30x = 1020x^2

If you're adding them: 34x + 30x = 64x

If you're subtracting them: 34x - 30x = 4x

Step-by-step explanation:

Answer:

105

Step-by-step explanation:

7x15=105

Answer: 35

Step-by-step explanation:

If you multiply 5X7 it gives you 35 if 3lbs cost 15 that means every lb cost 5 , or you can add 5 +5 till you get 35

Answer:

7a - 21 + 28b

Step-by-step explanation:

using the distributive property we can multiply 7 to the numbers in the paretheses. doing this we get:

7a - 21 + 28b

Answer:

4.5%

Step-by-step explanation:

I am pretty sure that 6 percent of 75 is 4.5..

I hope that this helps u

Answer:

(x-6)/8

Step-by-step explanation:

it cannot be simplified any further

I hope this helped, and if it did, please mark this as brainliest! Thanks!

Answer:

-3n-2

-3   -3

n=2/3

you would be dividing

it would be N=2/3

Answer:

brainliest plsssss

Step-by-step explanation:

−2−3n

= −2 + −3n

Answer:

1200 inc^3

Length x width x height

10 x 8 x 15= 1200

Step-by-step explanation:

[tex] \underline{ \underline{ \text{Given}}} : [/tex]

[tex] \underline{ \underline{ \text{To \: find}}} : [/tex]

[tex] \underline{ \underline{ \text{Solution}}}: [/tex]

First , finding the amount of interest :

[tex] \boxed{ \sf{Interest = \frac{PTR}{100}}} [/tex]

⇢ [tex] \sf{Interest = \frac{1800 \times 5 \times 3}{100}} [/tex]

⇢ [tex] \sf{Interest = \frac{27000}{100}} [/tex]

⇢ [tex] \sf{Interest = £ 270}[/tex]

Now , Finding the total amount :

[tex] \boxed {\sf{Total \: amount = Principal + Interest}}[/tex]

⇢ [tex] \sf{Total \: amount = 1800 + 270}[/tex]

⇢ [tex] \sf{Total \: amount = \: £ 2070}[/tex]

[tex] \red{\boxed{ \boxed{ \tt{Our \: final \: answer : brian \: will \: have £ 2070 \: after \: 3 \: year.}}}}[/tex]

Hope I helped ! ♡

Have a wonderful day / night ! ツ

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Answer:

a= 22.5

b= 37.5

Step-by-step explanation:

In △BCD:

Applying Pythagoras' Theorem,

a² +30²= b²

a² +900= b² -----(1)

In △ABC:

Applying Pythagoras' Theorem,

b² +50²= (40 +a)² -----(2)

Substitute (1) into (2):

a² +900 +50²= 40² +2(40)(a) +a² (expand bracket)

a² +900 +2500= 1600 +80a +a²

a² +3400= a² +80a +1600 (simplify)

a² +3400 -a² -80a -1600= 0 (bring everything to 1 side)

-80a +1800= 0

80a= 1800 (+80 on both sides)

a= 1800 ÷80

a= 22.5

Subst. a= 22.5 into (1):

22.5² +900= b²

b²= 506.25 +900

b²= 1406.25

b= √1406.25 (square root both sides)

b= 37.5 (reject negative value since b is a length)

☆(a +b)²= a² +2ab +b²

Answer:

13°C

Step-by-step explanation:

The number of hours that the temperature fluctuates is irrelevant to the problem.

This problem is asking how many degrees did the temperature increase in order to go back to 30°C after being decreased by 13°C.

Find the new temperature after it decreased:

If the temperature after decreasing is 17°C, it needs the same amount it was decreased by to go back to 30°C.

Therefore, the temperature subsequently increased by 13°C to go back to 30°C after being decreased by 13°C.

Answer:

5 X 6 = 30

12 X 10 = 120

120/30 = 4

answer is C quadrupled

Answer:

D) 180°

Step-by-step explanation:

Answer:  

Step-by-step explanation:

Answer: 1440°

Step-by-step explanation:

To solve the above question, we'll use the formula (n-2) × 180. In this question, we are told that it has 10 sides. This implies that n= 10. Therefore, using the formula goes thus:

= (n - 2) × 180

where, n = 10

= (10 - 2) × 180

= 8 × 180

= 1440

Answer:

are parallel

Step-by-step explanation:

Answer:

Your answer is:

Step-by-step explanation:

dun, dun, DUNNN

parallel lines!

I hope this helps!

- sincerelynini