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3 years ago

14

How much of a radioactive kind of francium will be left after 10 minutes if the half-life is 5 minutes and you start with 96 gra

ms?

1 answer:

trapecia [35]3 years ago

6 0

Answer:

24

Step-by-step explanation:

96/2=48/2=24

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Caleb made a scale drawing of a neighborhood park. The scale of the drawing was

WITCHER [35]

Answer:

2:1 =36mm: x m

2/1 = 36mm/ m......(Criss cross)

36mm x 1M/2mm = 18 Meter

5 0

4 years ago

If you have x, and your equation is 5/8x + 1/5x=99, what is x

noname [10]

$\frac{5}{8x} + \frac{1}{5x} = 99 \\ \\ \frac{33}{40x} = 99 \\ \\ 40x = 33 \times 99 \\ \\ x = 81.675$

8 0

3 years ago

Which is the graph of x Greater-than-or-equal-to 98.6? A number line going from 95 to 103. A closed circle is at 98.6. Everythin

Afina-wow [57]

Answer:

The correct option is;

A. A number line that goes from 95 to 103. A closed circle is at 98.6. Everything to the right is shaded.

Step-by-step explanation:

To represent x greater-than-or-equal-to 98.6 on the number line we note that an open circle stands for either a less than or a greater than, while an open circle stands for either less than or equal to or greater than or equal to

The correct way to represent x greater than or equal to 98.6 on the number line, we indicate the point 98.6 with a closed circle and we shade everything in the region of the solution which is to the right of the closed circle

Therefore the correct option is A. A number line that goes from 95 to 103. A closed circle at is at 98.6. Everyting to the right is shaded.

4 0

3 years ago

Which is the approximate solution for the system of equations 3x+4y=2 and 4x+y=-4

harina [27]

$3x+4y=2\qquad\text{subtract 3x from both sides}\\\\4y=-3x+2\qquad\text{divide both sides by 4}\\\\y=-\dfrac{3}{4}x+\dfrac{2}{4}\to y=-\dfrac{3}{4}x+\dfrac{1}{2}\\\\for\ x=0\to y=-\dfrac{3}{4}(0)+\dfrac{1}{2}=0+\dfrac{1}{2}=\dfrac{1}{2}\to\left(0,\ \dfrac{1}{2}\right)\\\\for\ x=2\to y=-\dfrac{3}{4}(2)+\dfrac{1}{2}=-\dfrac{3}{2}+\dfrac{1}{2}=-\dfrac{2}{2}=-1\to(2,\ -1)\\--------------------------------\\$

$4x+y=-4\qquad\text{subtract 4x from both sides}\\\\y=-4x-4\\\\for\ x=0\to y=-4(0)-4=0-4=-4\to(0,\ -4)\\\\for\ x=-1\to y=-4(-1)-4=4-4=0\to(-1,\ 0)\\\\Answer:\ \boxed{A.\ (-1.4,\ 1.5)}$

6 0

3 years ago

Read 2 more answers

Can you answer this 3 question pls giving a fat brainless. :) plss help

Drupady [299]

Answer:

Alright

Step-by-step explanation:

Bottom Left: Saturday

Bottom Right: Box A

Not sure about the top one :/

4 0

3 years ago