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kozerog [31]
3 years ago
6

Write an expression for "19 more than a number y."

Mathematics
1 answer:
SVEN [57.7K]3 years ago
8 0

Answer:

y+19

Step-by-step explanation:

simply because when it says "more than" or "less than" you have to flip it so it wouldnt be 19+y.

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Mrs. Nevin is making a costume for a school play. She needs a piece of fabric that is greater than 1/2 of a yard but less than 5
Bumek [7]

Answer:

4/7 yards

Step-by-step explanation:

Given that :

Required fabric is > 1/2 but < 5/8

Let required fabric = x

Then ;

Converting the fractions to decimal :

1/2 = 0.5 ; 5/8 = 0.625

0.5 < x < 0.625

3/8 yards = 0.375 ;

4/7 yards = 0.571

3/7 yards = 0.429

2/4 yards = 0.5

0.5 < 0.571 < 0.625

From the options, only 4/7 yards satisfies the condition :

5 0
3 years ago
Please help me ASAP!!!
Mama L [17]
9/20 

A percentage is the same as showing a number over 100 and if we multiply 20 by 5 we get 100.  So if we multiply 9 by 5 we get 45, giving us 45/100 which can be shown as 45%.

As a decimal, well if we say 100% equals 1.0, then 45% equals 0.45

7 0
3 years ago
Sarah has a 6 cup bag of rice. If a serving is ¾ of a cup, how many servings does Sarah have?
kondaur [170]

Answer:

There are 8 servings

Step-by-step explanation:

6÷3/4= 8

5 0
3 years ago
Read 2 more answers
if you flip a coin 10 times, what is the best prediction​ possible for the number of times it will land on heads?
SVETLANKA909090 [29]
Proabably. 5 because if there is 2 sides on a coin then you should divide 10÷2 which is 5.
4 0
3 years ago
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Show that 2x +1 is a factor of 2x3 +5x2+4x+1 and factories completely
larisa [96]

\text{According to the factor theorem, if f(b) = 0, then x-b is a factor of f(x).}\\\\\text{Given that,}\\\\f(x) = 2x^3 +5x^2 +4x +1 \\\\f\left(-\dfrac 12 \right) = 2\left( - \dfrac 12 \right)^3 +5 \left( - \dfrac 12 \right)^2 +4 \left( - \dfrac 12 \right) +1 \\\\\\~~~~~~~~~~~~=-2 \cdot \dfrac 18 + 5 \cdot \dfrac 14 -2 +1 \\\\\\~~~~~~~~~~~=\dfrac 54 -\dfrac14 -1\\\\\\~~~~~~~~~~~=\dfrac 44 -1 \\\\\\~~~~~~~~~~~=1-1\\\\\\~~~~~~~~~~~=0\\\\\text{So,}~ 2x +1 ~ \text{is a factor of f(x).}

\text{Now,}\\\\f(x) = 2x^3 +5x^2 +4x +1 \\\\~~~~~~=2x^3+x^2 +2x^2 +2x +2x+1\\\\~~~~~~=x^2(2x+1)  +2x(2x+1) +  (2x+1)\\\\~~~~~~=(2x+1)(x^2 +2x +1)\\\\~~~~~~=(2x+1)(x+1)^2

3 0
2 years ago
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