Laura jumped 2.3m in the high jump. Lucy jumped 20% lower. How much was Laura's jump?

Answers

Answer 1

Answer: Well...
because you need to find 20 percent try looking for a lower number like 10 percent
10 percent is 0.23 and double that is 0.46 which is 20 percent higher and so she Laura jumped 0.46m higher than Lucy!
so Laura jumped 0.46m higher

Answer 2

Answer: $2,3 \rightarrow 100 \% \n x = 2,3 - (0,2 * 2,3) \n \n x = 1.84m$

$\n \n (2,3)/(1,84) = 1,25 \n Laura's \ jump \ was \ 25\% \ higher$

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60 POINTS!! HELP ME PLEASEEEMr. Bean needs to buy one jar of spaghetti sauce for his famous Italian dish. Walmart has two jars of spaghetti for $4.50, Food4Less has 3 jars of spaghetti sauce for $6.63, Vons has a jar of Spaghetti sauce at $2.90 with a coupon of 12 cents off, and Starter Bros. has 4 jars of spaghetti sauce at $9. Answer the questions below and Show the work below

Answers

The first question’s answer and working out is in the attachment.

Question 2:
3 cans = $1
1 divide 3 = 0.333 recurring

0.333 recurring x 8 = 2.666666667
Answer = 2.666666667

I hope this help, if you have anything to ask. Feel free and ask me if the comments.

Please mark me the brainliest.

The answer your looking for is above my

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Answers

A rise is a line going upwards from left to right

a decrease is a line going downwards from left to right

Choice B

The answer is be because it show its progress dropping down.

Can you think of 7 ways to make 7 using arithmetic?

Answers

1. 1+6
2. 3+4
3. 8-1
4. 14-7
5. 11-4
6. 14 divided by 2
7. 7+0

Squareroot(y-1) + 3 = y

Answers

note:xy means x times y and x(y) means the same thing

so
first we get rid of square root then
make the equation equal to zero becaues if
xy=0 then x or/and y=0

squareroot(y-1)+3=y

isolate the squareroot
subtrac 3 from boht sides

squareroot(y-1)=y-3

square both sides (since they are equal, you should be able to square both sides and still make it true)

(squareroot(y-1))^2=(y-3)^2
(y-1)=(y-3)(y-3)
y-1=y^2-6y+9
subtrac y from both sides
-1=y^2-7y+9
add 1 to both sides
0=y^2-7y+10
find what two number multiply to make 10 and add to get -7
the answer is -2 and -5

0=(y-5)(y-2)
therfore
y-5=0
and/or
y-2=0

therefor
y=5 or/and 2 might work
let's try out 2
square root(2-1)+3=2
square root(1)+3=2
1+3=2
false
so 2 doesn't work

let's try 5
squareroot(5-1)+3=5
squareroot(4)+3=5
2+3=5
5=5
true

y=5

Sasha has a triangle with vertices A,B and C. The triangle has three congruent angles. She wants to show that triangle ABC has three congruent sides,but she does not have a ruler to measure the lengths of the sides. How can she show that the triangle has three congruent sides?