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3 years ago

Please help answer this!!!

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

3 0

Answer:

49) $12\,b^4$

50) $200\,x^6$

Step-by-step explanation:

Use the properties of exponent to reduce this expressions:

a) $3\,b\,*\,4 \,b^3=(3\,*\,4)\,(b\,*\,b^3)=12\,b^{(1+3)}=12\,b^4$

b) $5\,x^2\,*\,8\,x\,5\,*\,x^3=(5\,*\,8\,*\,5)\,(x^2\,*\,x\,*\,x^3)=200\,x^{(2+1+3)}= 200\,x^6$

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Diano4ka-milaya [45]

Answer:

$y=2x-14$

Step-by-step explanation:

we know that

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where

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4 years ago

Please help!! I don’t get it

Marrrta [24]

Answer:

Each hotdog costs $1.65

Each juice drink costs $1.05

Step-by-step explanation:

Let's begin by letting $x$ represent the number of hot dogs and $y$ the number of juice drinks.

The Baxter family bought 6 hot dogs and 4 juices for $14.10.

$6x + 4y = 14.10$

The Farley family bought 3 hot dogs and 4 juices for $9.15.

$3x + 4y = 9.15$

Now, we subtract these equations.

$6x + 4y = 14.10\\- (3x + 4y = 9.15)$

Since $y$ has reversed coefficients, it gets eliminated. Now solve for x.

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$\frac{4.95}{3} = 1.65$

$x = 1.65$

NOW, we find y by substituting x with 1.65 (in either equation).

We'll use the first equation.

$6x + 4y = 14.10$

$6(1.65) + 4y = 14.10$

$9.9 + 4y = 14.10\\4y = 14.1 - 9.9\\4y = 4.2$

$\frac{4y}{4} = \frac{4.2}{4} \\y = 1.05$

$x$ = 1.65

$y$ = 1.05

$x$ represents hotdogs and $y$ represents juice drinks.

Therefore, each hotdog costs $1.65 and each juice drink costs $1.05.

<em> I hope this helps! :)</em>

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3 years ago

a town has a population of 18000 and grows at 2% every year, What will be the population after 11 years, to the nearest whole nu

SCORPION-xisa [38]

Answer:

Step-by-step explanation:

we have 18,000 people

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time=11 years

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3 years ago

Tickets to Dundee crowns mr.dchs are $3 for students and $5 for adults. The number of adult tickets sold was 195 more than the n

Maurinko [17]

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Step-by-step explanation:

Let x = number of tickets sold by DCHS to students.

Let y = number of tickets sold DCHS to adults.

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This means cost of total tickets sold to students and adults is $3x and $5y respectively.

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The number of adult tickets sold was 195 more than the number of student tickets. This means

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Put y = x +195 in equation 1

3x + 5(x+195) = 3943

3x + 5x + 975= 3943

8x +975=3943

8x = 3943-975= 2968

x = 2968/8 = 371

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4 years ago

At an amusement park, 39 out of 52 tickets sold were discount tickets. What percentage of the tickets were discount tickets? Wri

Cloud [144]

75% of the tickets were discounts

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3 years ago