3 years ago

Sally had 57 apples if she gave 48 to charity how many apples does she have left

Mathematics

1 answer:

marin [14]3 years ago

4 0

Answer:

ig it equals 9- n e ways ye- I rp as killua :3

Step-by-step explanation:

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How do i do this pls help me

Delvig [45]

Answer:

$y = \frac{1}{7} x + 7$

Step-by-step explanation:

x-7y = -49

i) move x to the right-hand side and change its sign

-7y = -49-x

ii) change the signs on both sides of the equation

7y = 49+x

iii) divide both sides of the equation by 7

$\frac{7y}{7} = \frac{49}{7} + \frac{x}{7}$

$y = 7 + \frac{1}{7} x$

iv) use the commutative property to reorder the terms

* commutative property: a+b = b+a

$y = \frac{1}{7} x + 7$

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A seamstress is making a decorative pillow and wants to cover both sides of the pillow with special fabric. The pillow is in the

olganol [36]

The seamstress will need 12 inches of special fabric.

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3 years ago

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Given the following definition, compute Q(5). Q(n) = 0 if n = 0 2 if n = 1 4 if n = 2 Q(n − 1) + Q(n − 2) + Q(n − 3) if n > 2

aalyn [17]

We have
$Q(0)=0\\
Q(1)=2\\
Q(2)=4$
and $Q(n)=Q(n-1)+Q(n-2)+Q(n-3)\mbox{ when } n\ \textgreater \ 2.$
So
$Q(3)=Q(2)+Q(1)+Q(0)=4+2+0=6\\
Q(4)=Q(3)+Q(2)+Q(1)=6+4+2=12\\
Q(5)=Q(4)+Q(3)+Q(2)=12+6+4=22.
$

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3 years ago

I need help urgent this is to hard for me to do

Morgarella [4.7K]

Answer:

( 7 , 4 )

given:

4x + 10y = 68

4x - y = 24

make y the subject in equation 2:

4x - y = 24

-y = 24 - 4x

y = 4x - 24

insert this in equation 1:

4x + 10y = 68

4x + 10(4x - 24) = 68

4x + 40x - 240 = 68

44x = 68 + 240

44x = 308

x = 7

solve for y:

y = 4x - 24

y = 4(7) - 24

y = 4

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3 years ago

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What is the answer to 3s-4=1-3s<br> &<br> Ax+by=c <br><br> Thanks

otez555 [7]

1. S= 5/6 or 0.833333

2. 0

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3 years ago