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MakcuM [25]
2 years ago
8

Please look at photo and help me I will mark who ever is first

Mathematics
1 answer:
maksim [4K]2 years ago
5 0

Answer:

a = 9

Step-by-step explanation:

you can simplify the proportion to:

\frac{a}{24} =\frac{3}{8}

use cross- multiplication

8a = 72

a = 9

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Douglas bought a $20 game card at a
satela [25.4K]

Answer:

Douglas can race the go-karts at least 3 times.

Step-by-step explanation:

Given that:

Worth of game card = $20

Cost of go-kart = $3.50 each time

Amount Douglas wants to left = $7.75

Let,

x be the times Douglas can ride go-kart.

20 - 3.50x ≤ 7.75

-3.50x ≤ 7.75 - 20

-3.50x ≤ -12.25

3.50x ≤ 12.25

Dividing both sides by 3.50

\frac{3.50x}{3.50}\leq \frac{12.25}{3.50}\\x\leq 3.5

Hence,

Douglas can race the go-karts at least 3 times.

5 0
2 years ago
How many significant figures are in each of the following measurements? A. 0.4004 mL. B. 6000 g. C. 1,000 30 km. & D. 400. m
OLga [1]
The rules of significant figures are: 1. all non zeros are significant. 2. trailing zeros are significant. 3. zeros between non-zeros are signifincant. Hence, applying these to the given. 
A. 4 sig figs
B. 1 sig fig
C.6 sig figs
D.1 sig fig
6 0
3 years ago
What is the value of x?<br><br> Enter your answer in the box.<br><br> __cm
AveGali [126]
X  will always be = to 1

6 0
3 years ago
70 points and i’ll give brainliest!! please answer all the questions on the page! must show work and how you got the answer. ple
Bezzdna [24]

6. One variable only so pretty straightforward.

length-x+4

width-x

x+x+4=80

2x=76

x=38

x+4=42

answer: length 42cm and width 38cm

7. Another money problem!

n-# of nickels

q-# of quarters

n=3+q

0.05n+0.25q=2.85

Substitution works like a charm!

0.05(3+q)+0.25q=2.85

0.15+0.05q+0.25q=2.85

0.3q=2.7

q=9

n=3+q

n=3+9

n=12

answer: 9 nickels and 12 quarters

8. One variable situation again.

Ann's money-2b+9

Betty's money-b

b+2b+9=60

3b=51

b=17

2b+9=43

answer: Ann has $43 and Betty has $17.

9. # of red m&m's-x+1

# of blue m&m's-x

x+1+x=13

x=6

x+1=7

answer: 6 blue and 7 red m&m's

10. a-number of adult tickets

s-number of student tickets

a+s=785 ----> a=785-s

5a+2s=3280

5(785-s)+2s=3280

-3s=-645

s=215

a+s=785

a+215=785

a=570

answer: 215 children tickets and 570 adult tickets

3 0
3 years ago
Short Response<br> 6. Are the triangles at the right simílar? Explain.
Taya2010 [7]

Answer:

Yes they are similar because they are both right angles but the one on the right is bigger than the one on the left.

Step-by-step explanation:

5 0
3 years ago
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