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3 years ago

SIMPLIFY THE EXPRESSION 3Y+7+4Y+3

Mathematics

2 answers:

maksim [4K]3 years ago

5 0

Answer:

7Y + 10

Step-by-step explanation:

When simplifying expressions, it is important to add like variables with each other, and numbers with numbers. It is like the expression "you can't add apples and oranges", meaning you cannot add two different things.

So in order to simplify this expression we need to add all the Ys:

3Y + 4Y

= 7Y

and the numbers

7 + 3

= 10

Then adding them together gives the simplified version of:

7Y +10

Rufina [12.5K]3 years ago

4 0

7Y+10
Add your like variables (your Y’s) then your 7+3

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The camera cost $540 if the sales tax is 7.2% what is the tax change and the total cost?

soldier1979 [14.2K]

Answer:

38.88

Step-by-step explanation:

Convert the problem to an equation using the percentage formula: P% * X = Y.

P is 10%, X is 150, so the equation is 10% * 150 = Y.

Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10.

3 0

2 years ago

Plz help me do them all ill mark u brainliest give u 5 stars and a thank u I'm not lying

adoni [48]

Answer:

Zog:75

Zoz: 100

Zob :150

Zop:175

Zod :250

Step-by-step explanation:

Smallest island:

not Zoz

not Zop (100 people more than smallest island)

not Zob (1.5 times larger than one of the other islands)

not Zod (the largest island)

Zog is the smallest island (process of elimination)

use clue #1 Pzog=0.1Ptotal

Pzog=0.1*750

Pzog=75

Zog has 75 Zoxians living on it

now lets use clue #5

Pzop=Pzog+100

Pzop=75+100

Pzop=175

Zop has 175 Zoxians living on it

Lets use clue #3

lets find the fraction of the population living on Zog 75/750=1/10

lets find the fraction of the population living on Zop 175/750=7/30

there is an island 2 times larger (2/10)than zog (1/5)

there is an island with a population of 2 times larger 75*2=150

there is an island with 1/3 of total Zox population

this island has 250 people on it

now the last island has 750-75-175-150-250= 100 people living on it

now, lets use clue #4 to find which island is Zob:

Zog:75

Unknown 3: 100

Unknown 1:150

Zop:175

Unknown 2:250

Unknown island 1 is 1.5 times larger than Unknown 3,

thus Unknown 1 is Zob

Zog:75

Unknown 3: 100

Zob 1:150

Zop:175

Unknown 2:250

Zod is largest, so unknown 2 is Zod

Zog:75

Unknown 3: 100

Zob 1:150

Zop:175

Zod :250

by process of elimination, unknown 3 is Zoz

Zog:75

Zoz: 100

Zob 1:150

Zop:175

Zod :250

5 0

4 years ago

PLEASE HELP I DONT KNOW HOW TO SOLVE THIS :((

ANEK [815]

Answer:

$\displaystyle \angle A=30^\circ$

Step-by-step explanation:

We are given that in Circle O, Arc BAC measures 300°.

Recall that arc lengths will always total 360°. Therefore:

$\stackrel{\frown}{BAC}+\stackrel{\frown}{CB}=360^\circ$

By substitution:

$300+\stackrel{\frown}{CB}=360$

Thus:

$\stackrel{\frown}{CB}=60^\circ$

∠A intercepts Arc CB. Since it is an inscribed angle, it will be half of its intercepted arc. In other words:

$\angle A=\displaystyle \frac{1}{2}\stackrel{\frown}{CB}$

Therefore:

$\displaystyle \angle A=\frac{1}{2}(60)=30^\circ$

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3 years ago

Points M and P or shown on the number line which expression gives the distance between two points

Korolek [52]

Answer:

Step-by-step explanation:

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3 years ago

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Rolls are being prepared to go to grocery stores. Divide 72 rolls into 2 groups so the ratio is 3 to 5. (please include your wor

natali 33 [55]

$\sf 3:5 \to 3x:5x\\\\3x +5 = 8x\\ 8x = 72\\ x = 9\\\\9\times 3 =27\\9\times 5 =45\\ 27+45=72\\\\so~ the~ 2~ groups ~are~ 27~ and~ 45$

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3 years ago