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3 years ago

2(4x-5)-3 Math Help Simplify the expression

Mathematics

1 answer:

Anvisha [2.4K]3 years ago

7 0

8x-13

2(4)=8
2(-5)=-10
-10-3=-13

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What valur of x makes the equation below true? 9^5 * 9^7=9^x

klasskru [66]

Answer:

x=12

Step-by-step explanation:

(9^5)(9^7)=9^x

282429536481=9^x

Step 1: Flip the equation.

9^x=282429536481

Step 2: Solve Exponent.

9^x=282429536481

log(9^x)=log(282429536481)(Take log of both sides)

x*(log(9))=log(282429536481)

x=log(282429536481)/log(9)

x=12

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2 years ago

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GalinKa [24]

Answer:

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Step-by-step explanation:

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3 years ago

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Stella had a carton of 12 eggs. She used 4/6 of the eggs to bake loaves of bread for a bake sale how many eggs did Stella use fo

jonny [76]

Answer:

eight eggs were used

Step-by-step explanation:

simplify 4/6 to 2/3 which 2/3 of twelve is eight

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3 years ago

Need some help with these problems!

LekaFEV [45]

Answer:

h=12, w=24, t=8

Step-by-step explanation:

System of Linear Equations

We have 3 unknown variables and 3 conditions between them. They form a set of 3 equations with 3 variables.

We have the following data, being

w = price of a sweatshirt

t = price of a T-shirt

h = price of a pair of shorts

19.

The first condition states the price of a sweatshirt is twice the price of a pair of shorts. We can write it as

$\displaystyle w=2h$

The second condition states the price of a T-shirt is $4 less than the price of a pair of shorts. We can write it as

$\displaystyle t=h-4$

The final condition states Brad purchased 3 sweatshirts, 2 pairs of shorts, and 5 T-shirts for $136, thus

$\displaystyle 3w+2h+5t=136$

This is the system of equations we need to solve for w,t,h

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To solve the system, we replace w in terms of h and t in terms of h. Those relations have been already written, so

$\displaystyle 3(2h)+2h+5(h-4)=136$

Operating

$\displaystyle 6h+2h+5h-20=136$

$\displaystyle 13h=156$

Solving for h

$\displaystyle h=12$

The other two variables are

$\displaystyle w=2h=24$

$\displaystyle t=12-4=8$

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3 years ago

A BAKER USED 4 CUPS OF FLOUR TO MAKE 5 BEATLES OF COOKIES. HE USED ???? OF A CUP OF FLOUR TO MAKE 1 BATCH OF COOKIES

zepelin [54]

Answer:

Your answer will be 1.2 cups of flour

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Step-by-step explanation: I hope this heled, if not let me know and I will get you a better answer! :)

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