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3 years ago

Gaby has a total of 36 coins in her piggy bank. If the only coins in the bank are nickels and quarters, and add up

Mathematics

1 answer:

IrinaK [193]3 years ago

5 0

Answer:

21 quarters = 5.25

15 nickel. = .75

Step-by-step explanation:

21 + 15 = 36

5.25 + .75 = 6.00

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Which expression is undefined?

Mkey [24]

Answer:

D: $\frac{3}{(6-6)}$

Step-by-step explanation:

Option A equates to $-\frac{0}{2}=0$

Option B equates to $\frac{(-4+0)}{8}=\frac{-4}{8}=-\frac{1}{2}$

Option C equates to $0\div11 =0$

Option D equates to $\frac{3}{(6-6)}=\frac{3}{0}$ which cannot be defined as division by 0 is impossible

7 0

2 years ago

Boxes of sticky hands popsicles are 4.50. The supermarket is offering a 30% off coupon. What is the price with the coupon?

ArbitrLikvidat [17]

Included in your weekly circular should be free coupons, so coupons are free (disregarding the price you have to pay to live around the area)

if you want to know how much discount the coupon give you then

4.5*3/10=1.35
takes off $1.35

proportion method

30/100=x/4.5
3/10=x/4.5
cross multiply or ties both sides by 10*4.5
3*4.5=10x
13.5=10x
divide both sides by 10
1.35=x

discount of $1.35 (coupon saves you $1.35)

3 0

3 years ago

Read 2 more answers

What is the weight on earth of a girl with a mass of 44 kg?

Alexus [3.1K]

431.2 is the answer to your question

3 0

3 years ago

Solve the inequality<br> 7x<5x-8

Aleksandr [31]

Minust 5x both sides
7x-5x<5x-5x-8
2x<-8
divide by 2 both sides
x<-4

6 0

3 years ago

F(x) = 2x + 3g(x) = 2x² + 6x + 13Find: (gºf)(x)

Butoxors [25]

Answer:

The function (gof)(x) is;

$(g\circ f)(x)=8x^2+36x+49$

Explanation:

Given the functions;

$\begin{gathered} f(x)=2x+3 \\ g(x)=2x^2+6x+13 \end{gathered}$

Solving for the function;

$(g\circ f)(x)=g(f(x))$

so, we have;

$\begin{gathered} g(f(x))=2(f(x))^2+6(f(x))+13 \\ g(f(x))=2(2x+3)^2+6(2x+3)+13 \\ g(f(x))=2(4x^2+12x+9)^{}+6(2x)+6(3)+13 \\ g(f(x))=8x^2+24x+18^{}+12x+18+13 \\ g(f(x))=8x^2+24x^{}+12x+18+18+13 \\ g(f(x))=8x^2+36x+49 \end{gathered}$

Therefore, the function (gof)(x) is;

$(g\circ f)(x)=8x^2+36x+49$

5 0

1 year ago