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Ne4ueva [31]
3 years ago
7

Tony buys 4kg of potatoes at £1.60 per kilogram and 2kg of onions at £1.80 per kilogram.

Mathematics
2 answers:
natali 33 [55]3 years ago
3 0

Answer:

£10

Step-by-step explanation:

4 × 1.60 = 6.40

2× 1.80 = 3.60

6.40 + 3.60 = 10.00

zhuklara [117]3 years ago
3 0

Tony buys 4kg of potatoes at £1.60 per kilogram and 2kg of onions at £1.80 per kilogram.

She pays with a £20 note.

How much change should she receive? ​

4kg of potatoes at £1.60 = 4 x 1.60 = 6.40

2kg of onions at £1.80 = 2 x 1.80 = 3.60

4kg of potatoes + 2kg of onions = 6.40 + 3.60 = 10

£20 - £10 = £10

How much change should she receive? ​£10

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A glass of skim milk supplies 0.1 mg of iron, 8.5 g of protein, and 1 g of carbohydrates. A quarter pound of lean red meat provi
Tems11 [23]

Answer:

glasses of milk=4

quatar pounds servings of meat =5

two slices of whole grains bread =8

Step-by-step explanation:

Let m= milk

r=meat

b=bread

0.1m+3.4r+2.2b=35 (1)

8.5m+22r+10b=224 (2)

m+20r+12b=200 (3)

Multiply (1) by 85 and (2) by 1

8.5m+289r+187b=2,975 (4)

8.5m+22r+10b=224 (5)

Subtract (5) from (4)

267r+177b=2,751 (6)

Recall,

8.5m+22r+10b=224 (2)

m+20r+12b=200 (3)

Multiply (2) by 1 and (3) by 8.5

8.5m+22r+10b=224 (7)

8.5m+170r+102b=1700 (8)

Subtract (7) from (8)

148r+92b=1,476 (9)

Recall,

267r+177b=2,751 (6) and

148r+92b=1,476 (9)

Multiply (6) by 148 and (9) by 267

26196b=407,148 (10)

24564b=394,092 (11)

Subtract (11) from (10)

1,632b=13,056

Divide both sides by 1,632

b=13,056/1,632

b=8

Substitute the value of b in (9)

148r+92b=1,476 (9)

148r+92(8)=1,476

148r+736=1,476

148r=1,476-736

148r=740

Divide both sides by 148

r=740/148

r= 5

Substitute the value of b and r in (1)

0.1m+3.4r+2.2b=35 (1)

0.1m+3.4(5)+2.2(8)=35

0.1m+17+17.6=35

0.1m+34.6=35

0.1m=35-34.6

0.1m=0.4

Divide both sides by 0.1

m=0.4/0.1

m=4

4 glasses of milk, 5 quatar pounds servings of meat and 8 two slices of whole grains bread will supply the required nutrients.

8 0
3 years ago
Of a squirrel's hidden nuts, for every 5 that get found, there are 3 that do not get found. A squirrel hid 40 nuts all together.
koban [17]

Answer:

15 nuts do not get found.

Step-by-step explanation:

Given that Of a squirrel's hidden nuts, for every 5 that get found, there are 3 that do not get found.

Total number of nuts squirrel had hidden = 40

Proportion of nuts not found to total = 3/(3+5) = 3/8

Hence out of 40, nuts not found =3/8(40) = 15 nuts.

15 nuts would not be found and 25 nuts would be found if squirrel had hidden in total 40 nuts.

This is because the proportion of found:unfound = 5:3

Hence 25:!5 =5:3 satisfies this

15 nuts are not found.

5 0
3 years ago
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Answer:

no, there is not enough information to use AAS congruence theorem to prove the triangles are congruent

6 0
3 years ago
Can someone help me with this? Last one is -1/4 btw
Leya [2.2K]
2 because rise/run so 8/4 which=2
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Roman55 [17]

Answer: answer is B. 6x+9

Step-by-step explanation:

credits: chrisxxz answered it

7 0
3 years ago
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