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3 years ago

Find the value of this experssion x = -9 x - 3 x + 5?

Mathematics

2 answers:

aalyn [17]3 years ago

8 0

If you are imposing the x=-9 then, the problem would be set up like this:
=-9-3(-9)+5
=-9-(-27)+5
=18+5
=23

spin [16.1K]3 years ago

4 0

X is equal to........

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Together Kate and Matt have 47 cards. If Kate and Zach combine cards they have 126. If Matt and Zach combine they have 93. How m

Ede4ka [16]

Answer:

Matt has 7 cards.

Step-by-step explanation:

Let K, M and Z represent number of cards that Kate, Matt and Zach have.

We have been given that together Kate and Matt have 47 cards. We can represent his information in an equation as:

$K+M=47...(1)$

We are also told that Kate and Zach combine cards they have 126. We can represent his information in an equation as:

$K+Z=126...(2)$

Further, Matt and Zach combine they have 93. We can represent his information in an equation as:

$M+Z=93...(3)$

Upon subtracting equation (3) from equation (2), we will get:

$K-M=126-93$

$K-M=33$

$K=33+M$

Upon substituting this value in equation (1), we will get:

$33+M+M=47$

$33-33+2M=47-33$

$2M=14$

$M=\frac{14}{2}=7$

Therefore, Matt has 7 cards.

3 0

4 years ago

Read 2 more answers

A large order of cheesy fries costs $7. How much would it costs to buy three orders of cheesy fries?

Maru [420]

Answer:

21 dollars

Step-by-step explanation:

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3 years ago

Annie would like to take out a loan to put a new playground in her yard for her kids. She offers her car which is worth $7,800 a

qwelly [4]

Answer:

Annie will be able to borrow $ 7,716.00 for the playground using her car a collateral (option b).

Explanation:

Interpretation of the problem: to take out a loan to put a new playground in her yard for her kids, Annie offers her car which is worth $ 7,800 as collateral. Since the loan officer at the bank is permitted to loan Annie 92% of the value of her collateral, in order to know how much Annie will be able to borrow, you must use percentage calculations.

Percent is a definition: percent is the ratio of an amount with respect to one hundreed. The mathematical expressions derived from that definition is:

Percent, % = (amount / base) × 100

In this case, the percent that the officer is permitted to loan is known, 92%, the amount to borrow is unknown (x), and the base is the value of her car (the collateral), $ 7,800, which leads to the following equation: