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3 years ago

Help plz and tanks............

Mathematics

2 answers:

ladessa [460]3 years ago

7 0

Step-by-step explanation:

the first one is 1 apple , 3 strawberries

the second is 8 apples, 24 strawberries

the third one is 5 apples, 15 strawberries

and the last one is 3 apples, and 9 strawberries

I'm sorry if I'm wrong I'm not good at math :( but i hope it helps :D

Harrizon [31]3 years ago

3 0

Answer:

1 I 3

8 I 24

6 I 18

3 I 9

Step-by-step explanation:

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45% of 20 is what I need help and I need u to explain it please thank u

lora16 [44]

45% of 20
20 times 0.45
= 9
The answer is 9

5 0

3 years ago

Annie is framing a photo with a length of 6 inches and a width of 4 inches. The distance from the edge of the photo to the edge

Ede4ka [16]

Answer:

Part a) The quadratic function is $4x^{2} +20x-39=0$

Part b) The value of x is $1.5\ in$

Part c) The photo and frame together are $7\ in$ wide

Step-by-step explanation:

Part a) Write a quadratic function to find the distance from the edge of the photo to the edge of the frame

Let

x----> the distance from the edge of the photo to the edge of the frame

we know that

$(6+2x)(4+2x)=63\\24+12x+8x+4x^{2}=63\\ 4x^{2} +20x+24-63=0\\4x^{2} +20x-39=0$

Part b) What is the value of x?

Solve the quadratic equation $4x^{2} +20x-39=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem

we have

$4x^{2} +20x-39=0$

$a=4\\b=20\\c=-39$

substitute in the formula

$x=\frac{-20(+/-)\sqrt{20^{2}-4(4)(-39)}} {2(4)}$

$x=\frac{-20(+/-)\sqrt{1,024}} {8}$

$x=\frac{-20(+/-)32} {8}$

$x=\frac{-20(+)32} {8}=1.5\ in$ -----> the solution

$x=\frac{-20(-)32} {8}=-6.5\ in$

Part c) How wide are the photo and frame together?

$(4+2x)=4+2(1.5)=7\ in$

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3 years ago

Identify the solution(s) of the system of equations, if any.<br> -6x - 4y = 12<br> 12y = -18x - 36

UkoKoshka [18]

$-6x - 4y = 12|\div 2\\
12y = -18x - 36|\div 6\\\\
-3x-2y=6\\
2y=-3x-6\\\\
-3x-2y=6\\
-3x-2y=6$

Both equations are equivalent, so there are infinitely many solutions.

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3 years ago

By 8:00 a.M,, the snack bar had made 3,256 in sales. By noon the snack bar total sales were 8,821 About how much money did snack

marissa [1.9K]

5,565, if you subtract the 2 numbers

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3 years ago

Determine the number of pounds of nuts selling for $6 per pound and raisins selling for $3 per pound

Oksana_A [137]

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