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FinnZ [79.3K]
3 years ago
10

4(1 - 4n) + 5(- 7) please help

Mathematics
2 answers:
Roman55 [17]3 years ago
8 0

Answer: - 16n - 31

Step-by-step explanation:

4 - 16n - 35

LenKa [72]3 years ago
5 0
Distribute:
(4)(1)+(4)(−4n)+(5)(−7)=
4+−16n+−35

Combine:
4+−16n+−35=

(−16n)+(4+−35)=


Answer:
-16n+−31
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Chevy has some yarn that he wants to use to make hats and scarves. Each hat uses 0.20.20, point, 2 kilograms of yarn and each sc
Rashid [163]

Answer:

The system of equation that represent this situations are;

\left \{ {{h+s=15} \atop {0.2h+0.1s=2}} \right.

Also 5 hats and 10 scarves can be prepared from 2 kg of yarn.

Step-by-step explanation:

Let number of hat Chevy makes be h.

Also Let number of scarves Chevy makes be s.

Given:

Total Amount of yarns = 2 kg

Total number of items = 15

Since Items need to make are hat and scarves.

Hence the equation can be represented as;

h+s=15 \ \ \ \ equation \ 1

Again Given:

Each hat uses 0.2 kilograms of yarn.

each scarf uses 0.1 kilograms of yarn.

Hence the equation can be represented as;

0.2h+0.1s=2 \ \ \ \ \ equation \ 2

Hence the system of equation that represent this situations are;

\left \{ {{h+s=15} \atop {0.2h+0.1s=2}} \right.

Now Solving these to find number of hats and number of scarves.

Multiplying equation 2 with 10 we get;

10(0.2h+0.1s)=2\times 10\\10\times0.2h+10\times0.1s=20\\2h+s =20 \ \ \ \ \ equation \ 3

Now Subtracting equation 1 from equation 3 we get;

(2h+s)- (h+s) =20-15\\2h+s-h-s=5\\h= 5

Now Substituting the value of h in equation 1 we get;

h+s= 15\\5+s =15\\s=15-5\\s=10

Hence 5 hats and 10 scarves can be prepared from 2 kg of yarn.

5 0
3 years ago
PLEASE HELP!!
I am Lyosha [343]
36 + 18 = 54

(1) 18/54 = 1/3 = 33%

43 + 24 = 67

(2) 24/67 = 36%




I hope these are right
3 0
2 years ago
Read 2 more answers
Select all of the expressions which show how to convert 2.5 yards into inches.
PIT_PIT [208]

Answer:

90

Step-by-step explanation:

4 0
3 years ago
Brianna paid $13.77 for a new CD. The price includes a 6% sales tax. How much was the CD before the tax?
Lilit [14]
$12.94 is what the CD would be before the 6% sales tax
8 0
3 years ago
1/4 2/10 correct comparison answer
lubasha [3.4K]
Not exactly

2/10 = .2
1/4 = .25

1/4 is 0.05 bigger than 2/10
4 0
2 years ago
Read 2 more answers
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