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3 years ago

Solve and check: y = x + 4 y = 3x

Mathematics

1 answer:

Sav [38]3 years ago

3 0

Answer:

X=2

Step-by-step explanation:

3x = x + 4

3x - x = 4

2x = 4

x = 4/2

x = 2

Check:

3(2) = 2 + 4

6 = 6

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9y^2-18y+8 please help

PilotLPTM [1.2K]

The answer would be (3y-2)(3y-4)
9y^2-18y+8
=(3y-2)(3y-4)

7 0

3 years ago

Mr. Smith's class has 28 students. They all put in an equal amount of money to get Mr. Smith an end of year gift. If they collec

ivann1987 [24]

Answer:

Step-by-step explanation:

28 students all give $128

so,

$\sqrt[28]{128}$ = v v=6

Each student gave 6 dollars. This is true due to the fact that

$\sqrt[28]{128}$ =6

28X6=128

3 0

2 years ago

Use multiples to write two fractions equivalent to 7/9.

Nitella [24]

Answer:

$\frac{14}{18}$ , $\frac{21}{27}$

Step-by-step explanation:

To create equivalent fractions multiply the numerator and denominator of the fraction by the same multiples.

Using a multiple of 2, then

$\frac{7}{9}$ = $\frac{7(2)}{9(2)}$ = $\frac{14}{18}$

Using a multiple of 3, then

$\frac{7}{9}$ = $\frac{7(3)}{9(3)}$ = $\frac{21}{27}$

4 0

3 years ago

Brand Number of Packets Cost

mash [69]

Brand 2 is the best value ⇒ B

Step-by-step explanation:

Let us write the Brand, Number of Packets and Cost

→ Brand : Number of Packets : Cost
→ 1 : 12 : $10.68
→ 2 : 16 : $9.44
→ 3 : 18 : $15.30
→ 4 : 24 : $21.84
→ 5 : 30 : $20.40

We need to find what brand is the best value

To find that let us find the price of each packet in each brand, by dividing the price of the brand by the number of the packets, the cheapest price is the best

∵ Brand 1 has 12 packets

∵ The price of Brand 1 is $10.68

∴ The price of each packet = 10.68 ÷ 12 = 0.89

∴ The price of each packet in Brand 1 is $0.89

∵ Brand 2 has 16 packets

∵ The price of Brand 2 is $9.44

∴ The price of each packet = 9.44 ÷ 16 = 0.59

∴ The price of each packet in Brand 2 is $0.59

∵ Brand 3 has 18 packets

∵ The price of Brand 3 is $15.30

∴ The price of each packet = 15.30 ÷ 18 = 0.85

∴ The price of each packet in Brand 3 is $0.85

∵ Brand 4 has 24 packets

∵ The price of Brand 4 is $21.84

∴ The price of each packet = 21.84 ÷ 24 = 0.91

∴ The price of each packet in Brand 4 is $0.91

∵ Brand 5 has 30 packets

∵ The price of Brand 5 is $20.40

∴ The price of each packet = 20.40 ÷ 30 = 0.68

∴ The price of each packet in Brand 5 is $0.68

∵ The least price of a packet is in Brand 2

∴ The cheapest price is Brand 2

Brand 2 is the best value

Learn more:

You can learn more about the word problems in brainly.com/question/2686310

#LearnwithBrainly

8 0

3 years ago

Lol this is an easy Question that if we r doing division method like the one in picture xD n if we have remainder 10 but we need

Hatshy [7]

Answer: This is so confusing.... like i think you broke my brain XD

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers