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3 years ago

Li rode her bike 25% of the way to school. She rode 5 blocks. How many blocks does Li live from school?

Mathematics

2 answers:

babymother [125]3 years ago

8 0

Answer:

Step-by-step explanation:

If you times 25 percent by 4 you get 100% times 5*4=20 so 20 blocks from school please give me brainlest

Alenkasestr [34]3 years ago

7 0

Answer:

20 Blocks

Step-by-step explanation:

First you would realize that 5 blocks is only 1/4 of the way to school because 1/4 is 25%

Next you should know that you just need to add 5 four times.

Lastly you would multiply 4*5=20

So therefore she lives 20 blocks from her school

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There are 100 seniors and 80 juniors in the Homecoming Parade. The students split up into groups of equal size, to fit on the pa

Masteriza [31]

Answer:

20 students should be on each float

Step-by-step explanation:

Number of seniors = 100

Number of juniors = 80

To find number of students that should be on each float, find highest common factor (H.C.F) of 100 and 80

Write prime factorisation of 100 and 80.

100 = $2^2$ × $5^2$

80 = $2^4$ × 5

So,

H.C.F(100, 80) = $2^2$ × 5 = 4 × 5 = 20

Therefore,

20 students should be on each float

3 0

3 years ago

The sum of two numbers is 10 and their product is 24. Find the<br>numbers.

irina [24]

Answer:

Step-by-step explanation:

$x,\ y-\text{the numbers}\\\\(1)\qquad x+y=10\\\\(2)\qquad xy=24\\\\==================\\\\(1)\qquad x+y=10\qquad\text{subtract}\ y\ \text{from both sides}\\(*)\qquad x=10-y\\\\\text{Substitute to (2):}\\\\(10-y)y=24\qquad\text{ue the distributive property:}\ a(b+c)=ab+ac\\10y-y^2=24\qquad\text{subtract 24 from both sides}\\-y^2+10y-24=0\qquad\text{change the signs}\\y^2-10y+24=0\\y^2-6y-4y+24=0\\y(y-6)-4(y-6)=0\\(y-6)(y-4)=0\iff y-6=0\ or\ y-4=0\\\\y-6=0\qquad\text{add 6 to both sides}\\y=6\\\\y-4=0\qquad\text{add 4 to both sides}\\y=4$

$\text{Put the values of}\ y\ \text{to (*)}:\\\\\text{for}\ y=6:\\x=10-6=4\\\\\text{for}\ y=4:\\x=10-4=6$

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4 years ago

What is the reciprocal of -1

zvonat [6]

Answer:

I believe that the reciprocal of -1

Hope this helps

Step-by-step explanation:

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3 years ago

What is the sum of 2m^2+3m-4 and m^2-3m-2

Viefleur [7K]

Answer:

3m² - 6

Step-by-step explanation:

Summing the 2 expressions

2m² + 3m - 4 + m² - 3m - 2 ← collect like terms

= (2m² + m²) + (3m - 3m) + (- 4 - 2)

= 3m² + 0 + (- 6) = 3m² - 6

3 0

3 years ago

Help!! I need this ASAP

Rzqust [24]

Answer:

x=15

Step-by-step explanation:

Well, you have 2 numbers that sum up to 90 (the angle) so you can first minus the one you know, making your number from 90-30=60. Now all thats left is the 4x=60, which you can do 60/4=15 to get your answer that x=15.

3 0

3 years ago

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