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egoroff_w [7]
3 years ago
5

Find the value to of each algebraic expression at the given replacement values.

Mathematics
1 answer:
Charra [1.4K]3 years ago
7 0

Answer:

-1

Step-by-step explanation:

x + 3xy \\ x = 2 \\ y =  -  \frac{1}{2}

Substitute the values into the equation

2 + 3(2)( -  \frac{1}{2} ) \\ 2 + 6( -  \frac{1}{2} ) \\ 2  - 3 \\  =  - 1

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One number is 5 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 555​,
ahrayia [7]

Answer:

167

Step-by-step explanation:

Let n be your first number. Then the second number is 5n; and the third number is n+100. So:

n+5n+n+100=569

4 0
3 years ago
A group of 20 people visited Anglesey for a weekend break.
morpeh [17]

Answer:

A = 4, B = 3, C = 7, D = 6

Step-by-step explanation:

A = 4 because A represents the number of people who didn't visit either place. This means that B + C + D = 20 - 4 = 16. To find C, which is the overlap we can do 10 + 13 - 16 = 7 so C = 7 which means B = 10 - 7 = 3 and D = 13 - 7 = 6.

6 0
4 years ago
Read 2 more answers
HELP ME!!!!!!!!!The potatoes beth brought weighed 3 kilograms and 420 grams. Her onions weighed 1,050 grams less than the potato
Volgvan
I think 306? Not completely sure! Hope this helps!!
5 0
3 years ago
jonshelle is developing a new bread recipe. The relationship between cups of water, w, and cups of flour, f, is w=3/5f what is t
kvv77 [185]

Answer:

The scale factor of water to flour is simply 3/5 or 3 to 5

Step-by-step explanation:

Here, we are interested in knowing the scale factor of water to flour.

To know this, we simply will rearrange the given equation;

w = 3/5f

Divide both side by f

w/f = 3/5

This shows that the scale factor of water to flour is 3 to 5 or simply 3/5

6 0
3 years ago
Yer has 2107 beads for making jewelry. If each necklace she makes needs 49 beads, how
9966 [12]

41 necklaces can be made using 2017 beads where 49 beads are used to make 1 necklace.

The total number of beads for making jewelry with Yer = 2017

Beads require to make 1 necklace = 49 beads

The number of necklaces that can be made using 2017 beads when 49 beads are required to make 1 necklace will be:

Number of necklace = 2017 / 49

Number of necklace = 41.16

That is 41 necklaces can be made using 2017 beads where 49 beads are used to make 1 necklace.

Therefore, 41 necklaces can be made using 2017 beads where 49 beads are used to make 1 necklace.

Learn more about Number here:

brainly.com/question/24644930

#SPJ9

5 0
2 years ago
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