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3 years ago

Pls anwers i will give brainlist.

Mathematics

2 answers:

nignag [31]3 years ago

6 0

Answer:

a. 52/4= answer is $13

b. 12.80/4=3.2*12= answer is $38.40

c. .88/4=.22*5= answer is $1.10

Step-by-step explanation:

Artyom0805 [142]3 years ago

4 0

Answer:

Step-by-step explanation:

A) 52\4=13$

B)12.8\4 = 3.2 cost per ice-cream cone

3.2 *12= 38.4 cost for 12 cones

C)0.88\4 =0.22 cost per banana

Cost for 5 = 0.22*5= 1.1$

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Suppose tortilla Chips cost 25.5 cents per ounce. What would a bag of chips cost if it contained 23oz?

avanturin [10]

Answer:

586.5 cents

Step-by-step explanation:

if one ounce costs 25.5 cents and the bag contains 23 oz, you multiple 25.5 by 23 to get 586.5

4 0

3 years ago

How many solutions does the system have? <br> y=−2x+1 <br> y=−2x^2+1

balu736 [363]

Answer:

The system has two distinct solutions.

Step-by-step explanation:

The given system of equations are:

$y=-2x+1--(1)$

and

$y=-2x^2+1---(2)$

In order to determine the number of solutions the two equations have, we need to equate the two equations to obtain,

$-2x^2+1=-2x+1$

We now group all terms on the left hand side and equate everything to zero.

$-2x^2+2x=0$

$x^2-x=0$

This is now a quadratic equation in $x^2$ with $a=1,b=-1,c=0$ .

At this stage we check the number of solutions using the discriminant.

$D=b^2-4ac$

$\Rightarrow D=(-1)^2-4(1)(0)=1$

Since the discriminant is greater than zero, the equation will have two distinct roots.

Therefore the system of equations has exactly two distinct solutions.

If you wish to see these solutions, you can continue as follows;

We factor $x$ to obtain,

$x(x-1)=0$

$\Rightarrow x=0,x-1=0$

$\Rightarrow x=0,x=1$

When $x=0,y=-2(0)+1$

Then we have,

$x=0,y=1$

When $x=1,y=-2(1)+1$

Then we have,

$x=0,y=-1$

See graph

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3 years ago

The radius of a circle is 28 centimeters. Which measurement is closest to the circumference of the circle in centimeters?

photoshop1234 [79]

Answer:

Solution in photo

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3 years ago

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masya89 [10]

1. Six. x x x x x x
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o o o o o

3. Four. # # # #
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@ @ @
@ @ @
@ @ @
@ @ @
@ @ @
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6 0

3 years ago

Which expressions are equivalent to 12x - 6?

iren2701 [21]

<h3>Answer</h3>

B and E

<h3>Explanation</h3>

A) It's wrong because

$- 6 \times (2x - 1) = - 12x + 6$

B) It's right because

$6 \times (2x - 1) = 12x - 6$

C) It's wrong because

$6x \times (2 - 1) = 6x \times 1 = 6x$

D) It's wrong because

$- 6x \times (2x - 1) = - 12 {x}^{2} + 6$

E) It's right because

$- 6 \times ( - 2x + 1) = 12x - 6$

F) It's wrong because

$6 \times ( - 2x + 1) = - 12x + 6$

8 0

3 years ago