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polet [3.4K]
2 years ago
5

Noah spent $190 on books. Math books cost $26 and English books cost $28. If he bought a total of 7 books, then how many of each

kind did he buy?
Mathematics
1 answer:
goldenfox [79]2 years ago
7 0

Answer:

he bought three math books and four english books

Step-by-step explanation:

26x3=78 (three books)

28x4=112 (four books)

112+78=190

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Walmart has jeans on sale for $42.89 the regular price is $59.99 what’s the savings before tax
kumpel [21]

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with saving rate = r%

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so 59,99 ( 1 - r%) = 42.89

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5 0
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Reflection and dilation is the transformation which will occur to map triangle ABC triangle to A^ * B^ n C^ prime.

<h3>What is a Triangle?</h3>

This refers to a plane figure which has features such as three angles and three sides.

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3 0
2 years ago
Bacteria usually reproduce by a process called binary fission. In this type of reproduction, one bacterium divides to
Fed [463]

Answer:

\large \boxed{\text{0.0462 min}^{-1}}

Step-by-step explanation:

One formula for the reproduction of bacteria is

\dfrac{N}{N_{0}} = e^{kt}

Data:

N = 2

N₀ = 1

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Calculation:

\begin{array}{rcl}\dfrac{N}{N_{0}}& =& e^{kt}\\\\\dfrac{2}{1}& = & e^{k\times15 \text{ min}}\\\\2 & = & e^{15k \text{ min}}\\\ln 2 & = & 15k \text{ min}\\k & = & \dfrac{\ln2 }{\text{15 min}}\\\\& = & \textbf{0.0462 min}^{\mathbf{-1}}\\\\\end{array}\\\text{The value of the constant k is $\large \boxed{\textbf{0.0462 min }^{\mathbf{-1}}}$}

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The size of a mumps virus is
ohaa [14]

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1.9 \times  {10}^{7} meters

is the right answer

8 0
1 year ago
If J is between H and K and HJ = 3(x + 2), JK = 3x -4 and KH = 44. What is the value of HJ?
Ira Lisetskai [31]
KH = 3(x + 2) + <span>3x - 4
KH = 3x + 6 + 3x - 4
KH = 6x + 2 = 44
6x = 42
x = 7
HJ = 3(x + 2)
HJ = 3(7 + 2)
HJ = 27</span>
7 0
3 years ago
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