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ololo11 [35]
3 years ago
13

Pleasssseeeee helppppp

Mathematics
1 answer:
Hitman42 [59]3 years ago
5 0

1)4÷30=7.5                                                2)  5÷10=2

7.5×4=30 (a)x=7.5                                           2×5=10      x=2

pls i need brainiest

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One ounce is approximately 28.3 grams. Write a direct variation equation that relates x ounces to y grams.
Dmitry_Shevchenko [17]

Answer:

15 oz

Step-by-step explanation:

5 0
3 years ago
In constructing a box-and-whisker plot for the data set below, at which values would you draw the left and right sides of the bo
finlep [7]
Lets put these numbers in order
1,2,3,3,4,5,6,7,8,8,9

Q1 = 3
Q2 (median) = 5
Q3 = 8

the box starts at Q1 and ends at Q3....so left side is 3 and right side is 8
u r correct...it is A


7 0
3 years ago
<img src="https://tex.z-dn.net/?f=2x%5E%7B2%7D%20%2B12x-7%3D0%20%5C%5C" id="TexFormula1" title="2x^{2} +12x-7=0 \\" alt="2x^{2}
m_a_m_a [10]

Answer:

-2. 46

- 9.54

Step-by-step explanation:

  • 2x²+12x-7=0
  • 2x²+12x+18= 25
  • 2*(x²+6x+9)=25
  • 2*(x+6)²= 5²
  • x+6= 5√2/2 ⇒ x= 5√2/2 -6 ≈ -2. 46
  • x+6= -5√2/2 ⇒ x= -5√2/2 -6 ≈ - 9.54
4 0
3 years ago
Will it cost more to rent from Company A or Company B if "Ali" rents the bounce house for 3 hours? 5 hours? 10 hours?
a_sh-v [17]

Answer:

3 HOURS : company A costs more

5 HOURS : Cost is the same

10 HOURS : Company B costs more

Step-by-step explanation:

Company A :

Rental fee = $100

Hourly rate = $20

Company B:

Hourly rate = $40

Cost of renting a bounce house from each company for h hours ;

Company A:

Total cost = 100 + 20h

Company B:

Total cost = 40h

If h = 3

Company A:

100 + 20(3) = $160

Company B:

40(3) = $120

FOR h = 5;

Company A:

100 + 20(5) = $200

Company B:

40(5) = $200

FOR h = 10;

Company A:

100 + 20(10) = $300

Company B:

40(10) = $400

3 0
3 years ago
A rock is placed in a graduated cylinder to determine its volume. The following data are obtained. What is the volume of the roc
yarga [219]
Easy
when rock is in water, it takes up a certain volume, say x
so
initial+x=final volume
luckily we have final and inital
13.7ml+x=28.9ml
minus 13.7ml both sides
x=15.2ml


the volme of the rock is 15.2ml
7 0
3 years ago
Read 2 more answers
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