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3 years ago

What is the answer and how did you get the answer explain

Mathematics

1 answer:

Hunter-Best [27]3 years ago

7 0

Answer:

2c^2+5c+4

hope it's helpful ❤❤❤❤

THANK YOU.

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Help for 21 need help

AysviL [449]

53+53+53+53+53+53=318
if you add 53 six times you get 318

3 0

3 years ago

Read 2 more answers

Paul bought 18 pins for $90. Jack bought 45 pins for $180. Who bought pins at the lowest cost?

lina2011 [118]

Answer:

Jack

Step-by-step explanation:

90/18 = 5

180/45 = 4

3 0

3 years ago

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Find the values of the apple, banana and lollypop below. Pls help

maks197457 [2]

Answer:

a= Apple = 3

b= Banana =5

v= Lollypop=1

Step-by-step explanation:

36 is divided into 2 giving us 18

Let apple=a

Banana=b

Lollypop=c

In the first half

An apple + 3 bananas=18

a+3b=18 (1)

Second half is further divided into 2

That is,

18÷2=9

First half of the second half

3apples=9

3a=9 (2)

Second half of the second half

1 apple + 1 banana + 1 lollypop=9

a+b+c=9 (3)

a+3b=18 (1)

3a=9 (2)

a+b+c=9 (3)

From (2)

3a=9

Divide both sides by 3

a=9/3

a=3

Substitute a=3 into 1

a+3b=18

3+3b=18

3b=18-3

3b=15

Divide both sides by 3

b=15/3

b=5

Substitute the value of a and b into (3)

a+b+c=9

3+5+c=9

8+c=9

c=9-8

c=1

Therefore,

a= Apple = 3

b= Banana =5

v= Lollypop=1

6 0

3 years ago

Explain what happens when you round 4.999 to the nearest tenth

Reptile [31]

It would round to 5 because 4.999 is closer to 5 than a decimal (idk if that's 100%)

5 0

3 years ago

3x + ky = 8

sattari [20]

Answer:

(a): x is 3 and ky is -1

(b): k is -2

Step-by-step explanation:

Let: 3x + ky = 8 be equation (a)

x - 2 ky = 5 be equation (b)

Then multiply equation (a) by 2:

→ 6x + 2ky = 16, let it be equation (c)

Then equation (c) + equation (b):

${ \sf{(6 + 1)x + (2 - 2)ky = (16 + 5)}} \\ { \sf{7x = 21}} \\ { \sf{x = 3}}$

Then ky :

${ \sf{2ky = 3 - 5}} \\ { \sf{ky = - 1}}$

${ \bf{y = \frac{1}{2} }} \\ { \sf{ky = - 1}} \\ { \sf{k = - 2}}$

4 0

3 years ago