(4th grade math)
Please help.

Answer:

First image: (6, -1)

2nd image: y = 63

Explanation:

1)

2x + y = 11

1/2x - 5y = 8

y = -2x + 11

1/2x - 5(-2x + 11) = 8

1/2x + 10x - 55 = 8

10.5x - 55 = 8

10.5x = 63

x = 6

2x + y = 11

2(6) + y = 11

12 + y = 11

y = -1

(x , y) = (6, -1)

2)

1/4(8y - 4.8) = 2 (0.9y + 5.4) + 3/5

2y - 1.2 = 1.8y + 10.8 + 0.6

0.2y - 1.2 = 11.4

0.2y = 12.6

y = 63

Answer:

5

Step-by-step explanation:

15 counters/3groups=5 counters per group

Answer:

given. Density=6g/cm3

mass=8.2g

=D=m/v

V=m/d=8.2/6=1.36cm3

A8-436873-658756780579y5

Step-by-step explanation:

Answer:

25x² - 16

Step-by-step explanation:

Given

(5x + 4)(5x - 4)

Each term in the second factor is multiplied by each term in the first factor, that is

5x(5x - 4) + 4(5x - 4) ← distribute parenthesis

= 25x² - 20x + 20x - 16 ← collect like terms

= 25x² - 16

Answer: Option 2.

Step-by-step explanation: 3x−4y=6

3x−4y+4y=6+4y

3x/3=4y+6/3

x=4/3y+2

7x-6y=9

7(4 /3 y+2)−6y=9

10 /3 y+14=9

10 /3 y+14+−14=9+−14

10 /3 y /10 /3 = −5 /10 /3

y= −3 /2

x= 4/ 3 y+2

x= 4 /3 ( −3 /2 )+2

x=0

x=0 and y= −3 /2

Answer:

2469 x 2/3= 1646

personally, I solve it by dividing the 2469 by 3 to get 1/3.

2469/3= 823

then, double it to get 2/3.

823x2= 1646

Answer:

No, y+7=2x does not represent direct variation

Step-by-step explanation:

No, y+7=2x does not represent direct variation, because of the constant (initial value) 7.

y = 2x represents direct variation; y = 2x - 7 does not.

Answer:

large intestine

in the large intestine there are 3 parts that are caecum colon and rectum. good is stored in the rectum until excreted

Answer:

b. a dilation by a scale factor of 2

Step-by-step explanation:

Which transformation, when performed on the triangle ABC, will result in the transformed figure

A'B'C' being similar but NOT congruent to the original triangle?

a. a reflection over the x-axis

b. a dilation by a scale factor of 2

C.a translation two units to the right

d. a rotation 90° clockwise about the origin

Solution:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, translation, reflection and dilation.

Rigid transformation are transformation that preserves the size and shape of a figure. Examples of rigid transformation are reflection, translation and rotation.

Dilation preserves the shape but not the size of a figure.

If translation, rotation or reflection is done on triangle ABC, the transformed figure would be congruent to the original triangle. But, if dilation is done, the transformed figure would be similar but NOT congruent to the original triangle.

Step-by-step explanation:

a) trei zecimi 0.3

b) doi întregi și șapte sutimi  2.0 7

c) patruzeci și trei de miimi   0 .0 4 3  -

d) douăzeci și opt miimi 0.028

e) șase întregi și șapte sutimi. 6.07

f) nouă sutimi 0.09

Answer:

Step-by-step explanation:

(4, 60), (5, 75)

(75 - 60)/(5 - 4)= 15/1 = 15

y - 60 = 15(x - 4)

y - 60 = 15x - 60

y = 15x

Answer:

The answer is zero.

Step-by-step explanation:

When you put the coordinates in the point-slope formula, it will be 7 - (-1) over  -2 - (-2), which is 8/0. When the denominator is zero in the fraction, the answer is zero.

Answer:

#171  -[tex]\frac{39}{4}[/tex]·a - [tex]\frac{53}{5}[/tex]

Step-by-step explanation:

after distributing:

-10a - 21/2 + 1/4a - 1/10 =

-39a/4 + (-105/10 - 1/10) =

-39a/4 - 106/10

Answer:

Linear pair angle of 40 is

=180-40

=140

If, the two rays are parallel

Therefore, the two rays are parallel and the straight line is transversal

Therefore, (?) angle =140 corrosponding angle

Your answer is 140

Answer:

$6.96

Step-by-step explanation:

5.25% of 5.79

5.79 × 5.25/100 = $0.303975 or $0.30

15% of 5.79

5.79 × 15/100 = $0.8685 or $0.87

total

$5.79 + $0.30 + $0.87 = $6.96

Four edges I believe :))

Answer:

Multiply the whole number part by the fraction's denominator.

Add that to the numerator.

Then write the result on top of the denominator.

Step-by-step explanation:

Answer:

To do this you will need to multiply the denomenator by the whole number and then add the numerator to that number. After you get that the new numerayoer is the big number and the denomentapr stays the same.

Step-by-step explanation:

2 1/2

5/2

Answer:

x=51

Step-by-step explanation:

166=13+3x

153=3x

51=x

I hope this is correct and helps you!

Answer:

Step-by-step explanation:

[tex]\frac{x}{7}=\frac{1}{\sqrt{3}}\\ \\ x=\frac{7}{\sqrt{3}}\\ \\ x=\frac{7\sqrt{3}}{3}[/tex]

Answer:

1.2

Step-by-step explanation:

1 liter = 1000 milliliters

if there’s two liters, that’s 2000 milliliters. the mom then poured 2 glasses each with 400 milliliters, or 800 milliliters in total. 2000 - 800 = 1200. 1200 milliliters converted into liters = 1.2 liters.

Answer:

1.2 liters

Step-by-step explanation:

Answer:

Not a function

Step-by-step explanation:

Fails the vertical line test

Answer:

No a circle is not a function.

Step-by-step explanation:

A function is a mapping from 1 set to another

eg, 1 to 2

3 to 4

while a circle it maps the same point to another

meaning it has more than two input/output

(if u get what i mean)

Answer:

is B

Step-by-step explanation:

trust me dawg

Answer:

D

Step-by-step explanation:

(3x6)x15=270 in

the volume formula is base times width times height.

Answer:

D

Step-by-step explanation:

i took the quiz

Answer:

I believe the answer is B

Step-by-step explanation:

Answer:

B) y = -[tex]\frac{1}{4}[/tex]x + 2

Step-by-step explanation:

slope is -1/4

y-intercept is 2

The expression 9x2/3 can be written in fraction form as, 18/3

Fraction is a mathematical term, which represents the portion or sub-parts of the whole thing. Basically, It has two parts: numerator and denominator.

Numerator is a number which lies on the top side, it indicates the number of equal parts taken and denominator is on the bottom side, it indicates the equal parts of the whole number.

9 times 2/3 can be calculated by first converting 9 to a fraction and then multiplying that fraction by 2/3. To convert 9 to a fraction, we write it over 9/1 x 2/3

Next, we multiply the two fractions by multiplying the numerators (the top numbers) together and the denominators (the bottom numbers) together:

⇒ (9/1) x (2/3)

⇒ (9 x 2) / (1 x 3)

⇒ 18/3

So, 9 times 2/3 as a fraction is 18/3.

To know more about Fraction check:

https://brainly.com/question/8482939

#SPJ5

Answer:

x = 5

Step-by-step explanation:

10 + 3 = 30 - 17