Ay for 100 points help me with this one an be right

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What two numbers that multiply -30 and add up to -1

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Car see it theninlanfe

Answer: 7

Step-by-step explanation:

At lunch, Kira eats either a burrito containing 490 milligrams of sodium or a peanut butter sandwich containing 700 milligrams of sodium. Her doctor told her to reduce her sodium to no more than 4,000 milligrams per week. Which inequality represents x, the number of microwave burritos, and y, the number of peanut butter sandwiches, she can eat each week?
490x + 700y < 4000 490x + 700y ≤ 4000 490x + 700y > 4000 490x + 700y ≥ 4000

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If
x is the number of microwave burritos
y is the number of peanut butter sandwiches
4000 is the maximum allowable sodium intake

Then, the inequality is:
490x + 700 y ≤ 4000

The correct answer is the second option.

Answer:

answer is b

Step-by-step explanation:

Is 0.7 greater than 0.75 or less than 0.25

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.70 is not greater than .75 but it is greater than .25!

9 is added to the product of 9 and a number

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"a number," which is unknown will be represented by "x."

The predicted of 9 and x is 9x.

9 added is +9.

So the expression is 9x + 9

Mario paid $44.25 in taxi fare from the hotel to the airport. the cab charged $2.25 for the first mile plus $3.50 for each additional mile. how many miles was it from the hotel to the airport

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The distance from the hotel to the airport was 12 miles.

What is Algebraic expression ?

Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.

From the information given, the taxi fair is equal to the initial cost of first mile added to the result of multiplying the cost per mile for the number of miles, which is:

t=2.25+3.50x, where:

t is the b

x is the number of miles

Now, you can replace t with 44.25 and solve for x to find the miles:

44.25=2.25+3.50x

42 = 3.5x

x = 42/3.5

x = 12

Therefore, the distance from the hotel to the airport was 12 miles.

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remember
$(x^(m))^(n)=x^(mn)$
and
if a^x=a^y where a=a, then x=y so
make bases the same

2^(2x)=8^(x-1)
8=2^3
8^(x-1)=(2^3)^(x-1)=2^(3(x-1))
2^(2x)=2^(3(x-1))
threfor
2x=3(x-1)
2x=3x-3
0=x-3
3=x