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Ghella [55]
3 years ago
8

Please help answer these math question will give brainless.. :)

Mathematics
1 answer:
dezoksy [38]3 years ago
8 0
I’m going to do one at a time 7a.) y=-3x+3
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Write 2603094 using exponents?
Artemon [7]
2*10^6 + 6*10^5 + 3*10^3 +9*10^1 +4*10^0

see expanded form is adding the digits together. and it would be what ever one number is times 10 to the power of how many digits are after that number. you skip the 0's though. hope this helps
7 0
3 years ago
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If x is not equal to 0 then u/x + 5u/x - u/5x = what?
gavmur [86]
\frac{u}{x}+\frac{5u}{x}-\frac{u}{5x}=\frac{5u}{5x}+\frac{25u}{5x}-\frac{u}{5x}=\frac{5u+25u-u}{5x}=\frac{29u}{5x}
5 0
3 years ago
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Jess has 60 ounces of an alloy that is 40% gold. How many ounces of pure gold must be added to this alloy to create a new alloy
tia_tia [17]

Answer:

84 ounces of pure gold

Step-by-step explanation:

Jess has 60 ounces of an alloy that is 40% gold. How many ounces of pure gold must be added to this alloy to create a new alloy that is 75% gold?

Pure gold = 100% gold

Let the number of ounces of pure gold = x

Hence, we have the equation

40% × 60 ounces + 100%× x ounces = 75%(60 + x)ounces

= 0.4 × 60 + 1x = 0.75(60 + x)

= 24 + x = 45 + 0.75x

Collect like terms

x - 0.75x = 45 - 24

0.25x = 21

x = 21/0.25

x = 84 ounces

Therefore, we need 84 ounces of pure gold

6 0
3 years ago
I really need help A large city offers many venues for watching a concert. A listing of concert venues for the city includes the
hram777 [196]

Answer: location

Step-by-step explanation:

4 0
3 years ago
PLEASE ANSWER ASAP, WILL GIVE BRAINLIST, 50 POINTS AND 5 STARTS IF 100% CORRECT.
ELEN [110]

Yellow and 1: Fraction = 1/15 Decimal = .067 Percent = 6.7%

Red and odd: Fraction = 2/15 Decimal = .133 Percent = 1.3%

PS. I rounded decimals to nearest thousandth, and decimals to nearest tenth.

5 0
3 years ago
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