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3 years ago

Write the following sentence using mathematical symbols:

Mathematics

2 answers:

Fofino [41]3 years ago

8 0

Answer:

$4x\leq -20$

Step-by-step explanation:

Product refers to multiplication, hence the 4x.

iragen [17]3 years ago

4 0

Answer:

We will write each part of this sentence:

The product of 4 and x: This means 4 and x are getting multiplied, so 4x

Less than or equal: This is what we mean with this symbol $\leq$

So we know that $4x \leq -20$

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Find the value of F(5) for each function.<br><br> f(a) = 3(a + 2) - 1

Sati [7]

Answer:

Step-by-step explanation:

first plug it in, then solve. Step by step:

3(5 + 2) - 1

3(7) - 1

21 - 1

8 0

3 years ago

during a research experiment, it was found that the number of bacteria in a culture grew at a rate proportional to its size. At

aksik [14]

Answer:

10,600

Step-by-step explanation:

The bacteria grew in 2 hours by 800. Divide that and that it by 400 per hour.

Since it is a proportional rate, we can assume that the rate continue through till midnight.

Since midnight is 12 hours after noon then the bacteria grow 400 (12)=4800.

We add this to the population at noon 5800+4800=10,600.

8 0

3 years ago

Write an equation for each context. Draw a model first if necessary, and make sure you define your variable and what it represen

natta225 [31]

Answer:

a. $6x+1240=12484$

$x_1+x_2+x_3+x_4=65\\x_2=2x_1\\x_3=x_1+2\\x_4=0.25x_2$

c. $5x+20=415$

Step-by-step explanation:

a. In the account are 6 deposits of the paid that Tom gets each month and the initial $1240. Let $x$ be the paid Tom gets each month, then:

$6x+1240=12484$

Solving for $x$ :

$6x=12484-1240\\6x=11244\\x=\frac{11244}{6} \\x=1874\\$

b)Let $x_1$ be pounds contained in the first box, $x_2$ the pound in the second box, $x_3$ the pounds in the third box and $x_4$ the pound in the fourth box, then:

$x_1+x_2+x_3+x_4=65\\x_2=2x_1\\x_3=x_1+2\\x_4=0.25x_2$

Substitute the value of $x_2$ in the last equation:

$x_4=0.25(2x_1)\\x_4=0.5x_1$

Substitute all the equation in the first and solve for $x_1$ :

$x_1+(2x_1)+(x_1+2)+(0.5x_1)=65\\4.5x_1=65-2\\x_1=63/4.5=14$

Solving for x2,x3, and x4:

$x_2=2x_1=2*14=28\\x_3=x_1+2=14+2=16\\x_4=0.25x_2=0.25*28=7$

c) Simon is ordering 5 cans and 5 racquets, the total from the cans is 5(4)=$20. Let x be the cost of each racquet,

$5x+20=415$

Solving for x:

$5x=415-20\\x=395/5=79$

3 0

3 years ago

A bakery packages 868 muffins into a 31 boxes. The same number of muffins are put into each box. How many muffins are in each bo

MatroZZZ [7]

You would need to put 868 muffins equally into 31 boxes. So 868 divide by 31= 28 muffins per box.

3 0

3 years ago

2xy=4(1/2xy) because

frutty [35]

Because, when 4 multiply by 1/2 will equal 2, so 2xy=4(1/2xy)

8 0

3 years ago